OFC SYSTEM: Design & Analysis. BC Choudhary, Professor NITTTR, Sector 26, Chandigarh.

Size: px
Start display at page:

Download "OFC SYSTEM: Design & Analysis. BC Choudhary, Professor NITTTR, Sector 26, Chandigarh."

Transcription

1 OFC SYSTEM: Design & Analysis BC Choudhary, Professor NITTTR, Sector 26, Chandigarh.

2 OFC point-to-point Link Transmitter Electrical to Optical Conversion Coupler Optical Fiber Coupler Optical to Electrical Conversion Receiver

3 System Measurements & Design Considerations Design & installation of an OFC system require measurement techniques for verifying the operational characteristics of the constituent components. Of particular importance are accurate & precise measurements of optical fiber cannot be readily replaced once it has been installed. Two groups of people interested in fiber measurements are: Manufacturers- concerned with the material composition and fabrication effects on fiber properties System Engineers- must have sufficient data on the fiber to perform meaningful design calculations and to evaluate system during installation and operation.

4 Systems Communication Requirements Mainly Two Parameters of concern Link Length Repeater less distance (50km, 100km, 150km) Maximum data transmission rate (Mbps, Gbps) These requirements will decide the type of input data, transmitter (launch power, modulation), optical fiber cable, receiver(sensitivity) etc.

5 Operational Wavelength

6 Optical Transmitter Transmitter component serves two functions. Must be a source of the light coupled into the fiber optic cable. Must modulate this light so as to represent the binary data that it is receiving from the Source. Input Signal Coder or Converter Light Source Source-to-Fiber Interface Fiber-optic Cable

7 ILDs or LEDs? ILDs : LDs have advantages over LED's in the following ways. Can be modulated at very high speeds. They produce greater optical power. They have higher coupling efficiency to the fiber LEDs : LED's have advantages over LD's because they have Higher reliability Better linearity Lower cost

8 Semiconductor lasers for SM operation Febry - Perot Lasers Coupled Cavity Lasers Distributed Feedback Lasers DFB & DBR Quantum Well Lasers Vertical Cavity Surface Emitting Laser (VCSEL) All these configurations require a rigid control of the cavity parameters to achieve and maintain single mode operation.

9 Consideration Parameters Fiber Optic Cable How much light can be coupled into the core through the external acceptance angle? How much attenuation will a light ray experience in propagating down the core? How much time dispersion will light rays representing the same input pulse experience in propagating down the core?

10 Fiber optic cable can be one of two types Multi-mode or Single-mode. These provide different performance with respect to both attenuation and time dispersion. Glass fiber optic cable has the lowest attenuation and comes at the highest cost. Plastic fiber optic cable has the highest attenuation, but comes at the lowest cost.

11 Optical Receiver Receiver component serves two functions. Detect the light coupled out of the fiber optic cable then convert the light into an electrical signal. Demodulate the light to determine the identity of the binary data. Optical Fiber Coupler Optical to Electrical Conversion Receiver

12 Detectors There are two types of photodiode structures; Positive Intrinsic Negative (PIN) and Avalanche Photo Diode (APD). In most premises applications, PIN is the preferred element in Receivers. This is mainly due to fact that it can be operated from a standard power supply, typically between 5 and 15 V. APD devices have much better sensitivity; 5 to 10 db more. They also have twice the bandwidth. However, they cannot be used on a 5V printed circuit board. They also require a stable power supply. This makes cost higher. APD devices are usually found in long haul communications links.

13 Fiber Connectors The connector must direct light and collect light. It must also be easily attached and detached from equipment. This is a key point. The connector is disconnectable. FC, FC/PC, SC, SMA, ST, Biconic, D4, Commonly used connectors

14 Designing a Fiber Optic System When designing a fiber optic system, there are many factors that must be considered all of which contribute to the final goal of ensuring that enough light reaches the Receiver. Without the right amount of light, the entire system will not operate properly.

15 Step-by-step procedure to be followed while designing any system Determine the correct optical transmitter and receiver combination based upon the signal to be transmitted (Analog, Digital, Audio, Video, RS-232, RS-422, RS-485 etc.) Determine the operating power available (AC, DC etc.) Determine the special modifications (if any) necessary (Impedances, Bandwidths, Connectors, Fiber size, etc.) Calculate the total optical loss (in db) in the system by adding the cable loss, splice loss and connector loss. These parameters should be available from the manufacturer of the electronics and fiber.

16 Compare the loss figure obtained with the allowable optical loss budget of the receiver. Be certain to add a safely margin factor of at least few db to the entire system. Check that the fiber bandwidth is adequate to pass the signal as desired. After performing the above calculations, if it is discovered that the fiber bandwidth is inadequate for transmitting the required signal to desired distance, it will be necessary either; Select a different transmitter/ receiver combination, or Consider the use of a lower loss premium fiber.

17 BUDGET CALCULATIONS Two analyses are usually carried out to ensure that the desired system performance can be met: Link Power Budget Rise-time budget Link Power Budget : Determines the power margin between the optical transmitter output and the minimum receiver sensitivity needed to establish a specified BER. This margin can then be allocated to connector, splice and fiber losses, plus any additional margin required for possible component degradation, transmission-line impairments, or temperature effects. If the choice of components did not allow the desired transmission distance to be achieved, the components might have to be changed or amplifiers might have to be incorporated into the link.

18 If P S is the optical power emerging from the end of the fiber attached to the light source, and P R is the receiver sensitivity, then P T = P S - P R = 2 l c + f L + system margin where l c is the connector loss, f is the fiber attenuation in (db/km) and L is the transmission length. System margin is normally taken 6dB for LED and 8 db for ILD.

19 Rise-time budget: Once the link power budget has been established, the designer can perform a system rise time analysis (dispersion limitations) to ensure that the desired overall system performance has been met. Total rise time t sys of the link is the root mean square of the rise times from each contributor (t i ) to the pulse rise-time degradation Four basic elements that may significantly limit system speed are Transmitter rise time, Group velocity dispersion (GVD) rise time of the fiber, Modal dispersion rise time of fiber and Receiver rise time. t N 2 sys t i i 1 Generally, the total transition-time degradation of a digital link should not exceed 70% of an NRZ bit period or 35% of a bit period for RZ data. 1 2

20 Link Performance Analysis A power budget example Link length of 5 km (premises distances). Data Rate of 50 Mbps at BER of Transmitter LED: 850 nm, 3dBm, coupling loss 5 db. MM, SI, glass fiber optic cable 62.5/125 m Transmitter-fiber, fiber- receiver coupling loss; 1 db each. Fiber optic cable has 1 splice. Receiver- PIN sensitivity of -40 dbm at 50 Mbps.

21 Power Budget for a fiber optic data link LINK ELEMENT VALUE COMMENTS Transmitter LED output power Source coupling loss 3 dbm Specified value by vendor -5 db Accounts for reflections, area mismatch etc. Transmitter to fiber optic cable connector loss -1 db Transmitter to fiber optic cable with ST connector. Loss accounts for misalignment Splice loss Fiber Optic Cable Attenuation db Mechanical splice -20 db Line 2 of Table 2-1 applied to 5 km Fiber optic cable to receiver connector loss Optical Power Delivered at Receiver -1 db db Fiber optic cable to Receiver with ST connector. Loss Accounts for misalignment Receiver Sensitivity LOSS MARGIN -40 dbm Specified in link design db Surplus power available

22 Link Analysis Optical power at the Receiver is greater than that required by the sensitivity of the PIN to give the required BER. What is important to note is the entry termed Loss Margin? specifies the amount by which the received optical power exceeds the required sensitivity. In this example db. Good design practice requires it to be at least 10 db. Why? Because no matter how careful the power budget is put together, entries are always forgotten, are too optimistic or vendor specifications may not be accurate.

23 Typical OFC link & Performance Parameters Performance-measurement parameters of users interest

24 Optical Test Equipments Basic pieces of test equipment for carrying measurements on optical fiber components and system include Optical power meters, Continuity testers, Visual fault locators, Talk sets, Spectrum analysers, OTDRs and BER-Testers. These comes with variety of capabilities, with sizes ranging from portable, handheld units for field use to sophisticated briefcase sized instruments for laboratory applications. Most of these units has reached a high degree of sophistication with automated microprocessor-controlled test features and computer-interface capabilities

25 Power Meters & Talk Sets

26 Continuity Testers & Visual Fault Locators

27 Optical Spectrum Analyzers (OSA)

28 BER TESTERS

29 OTDR Models

30 Testing System Performance z=0 z=l Attenuation z=0 z=l Dispersion Attenuation & Dispersion degradation as a function of distance

31 Bit-Error-Rate (BER) Measurements Performance of any communication system can be evaluated by one of the following methods: Eye Diagrams / Patterns. Histogram Generation Bit Error Rate Measurements.

32 Bit Error Rate (BER) Most significant performance parameter in any digital communications system. Indeed, it is often accepted as the primary performance figure of merit for a communication system. Defined as the ratio of the number of errors in a given time interval (N e ) to the number of bits in that time interval (N t ). BER N N e t It is simply the probability that an error will occur in a given bit period. For many applications the maximum specified BER is 10-9 implying that only one error in 10 9 received bits is tolerated. For telecommunication applications the specified maximum BER falls in the range to 10-9.

33 BER Estimates Bit error rate (BER): Predict the statistical likelihood of encountering an error during communications. Can be measured empirically by counting the number of errors over an adequately long span of transmission BER depends primarily on the S/N ratio of the received signal, which in turn determined by transmitted signal power, attenuation of the link and receiver noise. Many other factors besides SNR degrade the BER and in their presence the received SNR must be increased to yield the desired BER. Increase necessary to completely offset the degradation caused by a given mechanism is referred to as the power penalty for that mechanism.

34 Main factors leading to significant penalties are Intersymbol interference (ISI) Non zero extinction ratio and Pulse position jitter BER estimation one of the valuable ways of viewing parametric performance of digital communication systems at high speeds. Requires sophisticated and expensive equipment to achieve accuracy, particularly at high bit rates BER Tester. Can be investigated qualitatively and perhaps in a pseudo quantitative manner by generating Eye Diagram An intuitive way of viewing parametric performance

35 Threshold detection and BER To allow the system designers to determine SNR and threshold level required to achieve the specified bit error rate. Useful to calculate the probability of error (BER) Need to establish the noise statistics and compute the probability that the noise level at any given sampling point pushes the signal to the wrong side of the threshold for a 1 or 0 transmitted. Signal Probability distribution functions for 0 & 1 levels. P 0 p0dv v th & v th P1 p1dv BER = P e = a P 0 + b P 1 Fig.1: PDFs for levels of 0 and 1 in the presence of random (Gaussian) noise. Shaded region - For a 0 signal Hatched region - For a 1 signal

36 Threshold Detection. V 1 V TH V 0 Sampling Instants Bit period Tx Bit Rx Bit

37 Total Probability of Error (Pe) : BER = a P 1 + b P 0 In term of Error Functions : BER P e erf Q 2 where Q (v v th 0 0 ) (v 1 v 1 th ) (v 1 v v N th ) Q-factor can be estimated from the measured noise voltages and hence BER can be determined For BER in the range of 10-9 to ; Q should falls between 6 and 7. Waterfall Curves Fig.2: Error probability Pe versus error probability factor Q Small variations in the Q-factor lead to fairly dramatic changes in the BER. Cannot afford to let the received SNR R drop below specification.

38 Eye-diagram Test Setup Eye-pattern technique is a simple but powerful measurement method for assessing the data-handling ability of a digital transmission system. Method used extensively for evaluating performance of wired systems and can also be applied to OFC data links. Eye-pattern measurements are made in the time-domain and allow the effects of waveform distortion to be shown immediately on a DSO. Basic Equipment for Eye-diagram Measurements

39 Experimental Set Up & Measurements

40 Eye Patterns A visual method to assess the quality of the output of a transmitter or the input / output of a receiver. Although the technique is largely qualitative it can provide some useful quantitative information in terms of trends and whether or not a system is performing to specification. Distance 2km from transmitter Distance 6 km from transmitter

41 Eye Pattern Interpretation M N is a measure of noise margin. S T is measure of sensitivity-totiming error. Full width noise V 1 Jitter 20-80% rise time V 0

42 RMS Noise and Jitter D A provides the following information: Jitter RMS noise can be estimated by a rule of the thumb that total noise on oscilloscope is 5 times the rms noise The mean 1 and 0 levels can also be calculated and hence Q can be estimated Q can be used now to find the BER. J T the range of amplitude differences of the zero crossing, is a measure of the timing jitter. Jitter introduces an uncertainty on the sampling position relative to the centre of the bit period and leads to an increase in error rate.

43 Power Penalty Significant levels of dispersion and ISI result in reduced received signal levels for 1s and increased level for 0s. This occurs due to the spread of power from 1 bit period into adjacent 0 bit period. This power penalty can be measured from eye diagram and is given as: Power Penalty = 10 log 10 [(V 1D V 0D )/ (V 1 - V 0 )]db

44 Noise Vs Distortion

45 Eye Diagram Analysis Often used for assessing the quality of received signal and indeed the quality and integrity of system transmitting it. Although qualitative; provides useful data in terms of trends and system operation as per specifications. Semi-quantitative information about the transmission quality Determination of Q -value and hence BER. Eye diagram showing sample measurements of 20-80% rise time, jitter, full width noise and the mean 0 & 1 levels.

46 Q-factor Analysis Software Softwares enable a DSO to sample the received signals in the centre of the bit period, transfer the sample to a PC and then to analyse them. The analyses algorithms enable the construction of signal level histogram (i.e. plot of the number of samples occurring in a narrow voltage range Vs voltage) which is essentially the probability distribution of the signal levels around 0 and 1 levels. Theoretical Gaussian distributions are curve fitted within the software to the measure distribution, signal level (noise) variance are extracted and Q-factor & BER are determined.

47 Histogram A histogram is a function which corresponds to the number of samples having a particular value (a) : Good reception. (b) : Poor reception

48 Sampling for Q-factor & BER Estimation

49 Factors affecting BER The main factors affecting BER are: Input Power. Signal to Noise Ratio (SNR). P e SNR

50 Signal maintenance using Optical Devices

51 Path Degradation/Engineering Fiber Fiber Original Signals Degraded & Dispersed Signals Amplified & Corrected Signals/Noise & Nonlinear gain Unusable Signal from Noise Generally amplifiers (Repeaters) are used to achieve the required SNR or depending on signal health, regenerators are used for amplification as well as shaping the signal to desired level. To compensate the dispersion (pulse broadening)- DCFs /FBGs are used either in pre- or post-compensation scheme.

52 Managing Attenuation: Amplification of Signal Conventional Method; By Electronic means O-E and E-O conversion devices for the realization of Optical Fiber Communications. A limiting factor within the implementation of optical fiber systems. Conversion of the information signal from the optical domain to the electrical domain and viceversa often provides a bottleneck within OFC links. Restrict both the operating bandwidth and the quality of the transmitted signal.

53 Optical Amplification of Signal Optical Amplifiers must operate solely in optical domain with no inter conversion of photons to electrons.

54 Semiconductor Optical Amplifiers SOAs offer a key technology for amplification, switching, wavelength conversion & regeneration in optical networks Drawbacks to SOAs include high-coupling loss, polarization dependence, and a higher noise figure.

55 Fiber Amplifiers EDFA Erbium Doped Fiber Amplifier Direct amplification of optical signal Flat gain around 1550nm BW 12,500 GHz Amplified DWDM Signal ( nm) ASE Noise & Unequal Gain

56 Managing Dispersion: Dispersion Compensating Fibers (DCFs) Designed for specific purpose, now used in high data N/Ws SMFs with Negative Dispersion characteristic Total dispersion of the link to be Zero: D 1 L 1 + (-D 2 L 2 ) 0 Pulse Spread compensation with a DCF

57 Manufacturers to modify Design of DCFs Refractive - index profile ( ) Relative Index value ( ) Decreasing Core radius (a); MFD 4.5 m Drawbacks Smaller in diameter Higher attenuation Coupling problems

58 Dispersion Compensator- FBG Based FBGs: Depending on grating period reflects specific wavelength Dispersion Compensation of 100 km standard fiber at 1550 nm using 6 cm chirped grating and optical circulator

59 FBG as Dispersion Compensator Delayed signal approach

60 Dispersion and Power maps

61 High Capacity OFC System Experimental setup for 55 wavelengths WDM transmission using 1550nm optimized fibers and DCFs in the link

62 Router MUX DEMUX The Optical Network System Transmitters l Optical Layers Optical Multiplexing Section Layer (OMS-L) Optical Transmission Section Layer (OTS-L) Receivers l Add/Drop l EDFA EDFA EDFA l l n l i l i l n Metropolitan-Access Network Network Management Layer Digital Client Layer Optical Channel (OC-N) Layer Digital Client Layer SONET/SDH/PDH/ATM/ IP/etc. Digital Hierarchy Layer EDFA = Erbium-doped fiber amplifier MUX = Multiplexer DEMUX = Demultiplexer

63 Bibliography: The excerpts of this lecture are based on information drawn from following reference. 1. Gerd Keiser, Optical Fiber Communica tion 3 rd edn., Mc Graw Hill, Eye Diagrams & BER in Optical Communication BER(COM)- Instructor Manual, OptoSci Limited Glasgow, Scotland. 3. Govind P. Agrawal, Fiber-Optic Communication Systems John Wiley & Sons (Asia) Pte Ltd, 3 rd Edn.,

64

OFC SYSTEM: Design Considerations. BC Choudhary, Professor NITTTR, Sector 26, Chandigarh.

OFC SYSTEM: Design Considerations. BC Choudhary, Professor NITTTR, Sector 26, Chandigarh. OFC SYSTEM: Design Considerations BC Choudhary, Professor NITTTR, Sector 26, Chandigarh. OFC point-to-point Link Transmitter Electrical to Optical Conversion Coupler Optical Fiber Coupler Optical to Electrical

More information

OFC SYSTEMS Performance & Simulations. BC Choudhary NITTTR, Sector 26, Chandigarh

OFC SYSTEMS Performance & Simulations. BC Choudhary NITTTR, Sector 26, Chandigarh OFC SYSTEMS Performance & Simulations BC Choudhary NITTTR, Sector 26, Chandigarh High Capacity DWDM OFC Link Capacity of carrying enormous rates of information in THz 1.1 Tb/s over 150 km ; 55 wavelengths

More information

Elements of Optical Networking

Elements of Optical Networking Bruckner Elements of Optical Networking Basics and practice of optical data communication With 217 Figures, 13 Tables and 93 Exercises Translated by Patricia Joliet VIEWEG+ TEUBNER VII Content Preface

More information

Lecture 8 Fiber Optical Communication Lecture 8, Slide 1

Lecture 8 Fiber Optical Communication Lecture 8, Slide 1 Lecture 8 Bit error rate The Q value Receiver sensitivity Sensitivity degradation Extinction ratio RIN Timing jitter Chirp Forward error correction Fiber Optical Communication Lecture 8, Slide Bit error

More information

Analysis of four channel CWDM Transceiver Modules based on Extinction Ratio and with the use of EDFA

Analysis of four channel CWDM Transceiver Modules based on Extinction Ratio and with the use of EDFA Analysis of four channel CWDM Transceiver Modules based on Extinction Ratio and with the use of EDFA P.P. Hema [1], Prof. A.Sangeetha [2] School of Electronics Engineering [SENSE], VIT University, Vellore

More information

Performance Evaluation of 32 Channel DWDM System Using Dispersion Compensation Unit at Different Bit Rates

Performance Evaluation of 32 Channel DWDM System Using Dispersion Compensation Unit at Different Bit Rates Performance Evaluation of 32 Channel DWDM System Using Dispersion Compensation Unit at Different Bit Rates Simarpreet Kaur Gill 1, Gurinder Kaur 2 1Mtech Student, ECE Department, Rayat- Bahra University,

More information

Chapter 8. Digital Links

Chapter 8. Digital Links Chapter 8 Digital Links Point-to-point Links Link Power Budget Rise-time Budget Power Penalties Dispersions Noise Content Photonic Digital Link Analysis & Design Point-to-Point Link Requirement: - Data

More information

Fiber-Optic Communication Systems

Fiber-Optic Communication Systems Fiber-Optic Communication Systems Second Edition GOVIND P. AGRAWAL The Institute of Optics University of Rochester Rochester, NY A WILEY-iNTERSCIENCE PUBLICATION JOHN WILEY & SONS, INC. NEW YORK / CHICHESTER

More information

Optical Digital Transmission Systems. Xavier Fernando ADROIT Lab Ryerson University

Optical Digital Transmission Systems. Xavier Fernando ADROIT Lab Ryerson University Optical Digital Transmission Systems Xavier Fernando ADROIT Lab Ryerson University Overview In this section we cover point-to-point digital transmission link design issues (Ch8): Link power budget calculations

More information

Chirped Bragg Grating Dispersion Compensation in Dense Wavelength Division Multiplexing Optical Long-Haul Networks

Chirped Bragg Grating Dispersion Compensation in Dense Wavelength Division Multiplexing Optical Long-Haul Networks 363 Chirped Bragg Grating Dispersion Compensation in Dense Wavelength Division Multiplexing Optical Long-Haul Networks CHAOUI Fahd 3, HAJAJI Anas 1, AGHZOUT Otman 2,4, CHAKKOUR Mounia 3, EL YAKHLOUFI Mounir

More information

Optical Amplifiers Photonics and Integrated Optics (ELEC-E3240) Zhipei Sun Photonics Group Department of Micro- and Nanosciences Aalto University

Optical Amplifiers Photonics and Integrated Optics (ELEC-E3240) Zhipei Sun Photonics Group Department of Micro- and Nanosciences Aalto University Photonics Group Department of Micro- and Nanosciences Aalto University Optical Amplifiers Photonics and Integrated Optics (ELEC-E3240) Zhipei Sun Last Lecture Topics Course introduction Ray optics & optical

More information

Implementing of High Capacity Tbps DWDM System Optical Network

Implementing of High Capacity Tbps DWDM System Optical Network , pp. 211-218 http://dx.doi.org/10.14257/ijfgcn.2016.9.6.20 Implementing of High Capacity Tbps DWDM System Optical Network Daleep Singh Sekhon *, Harmandar Kaur Deptt.of ECE, GNDU Regional Campus, Jalandhar,Punjab,India

More information

Performance Limitations of WDM Optical Transmission System Due to Cross-Phase Modulation in Presence of Chromatic Dispersion

Performance Limitations of WDM Optical Transmission System Due to Cross-Phase Modulation in Presence of Chromatic Dispersion Performance Limitations of WDM Optical Transmission System Due to Cross-Phase Modulation in Presence of Chromatic Dispersion M. A. Khayer Azad and M. S. Islam Institute of Information and Communication

More information

Optical Fibre Amplifiers Continued

Optical Fibre Amplifiers Continued 1 Optical Fibre Amplifiers Continued Stavros Iezekiel Department of Electrical and Computer Engineering University of Cyprus ECE 445 Lecture 09 Fall Semester 2016 2 ERBIUM-DOPED FIBRE AMPLIFIERS BASIC

More information

Module 12 : System Degradation and Power Penalty

Module 12 : System Degradation and Power Penalty Module 12 : System Degradation and Power Penalty Lecture : System Degradation and Power Penalty Objectives In this lecture you will learn the following Degradation during Propagation Modal Noise Dispersion

More information

CHAPTER 4 RESULTS. 4.1 Introduction

CHAPTER 4 RESULTS. 4.1 Introduction CHAPTER 4 RESULTS 4.1 Introduction In this chapter focus are given more on WDM system. The results which are obtained mainly from the simulation work are presented. In simulation analysis, the study will

More information

Fiber Optic Communication Link Design

Fiber Optic Communication Link Design Fiber Optic Communication Link Design By Michael J. Fujita, S.K. Ramesh, PhD, Russell L. Tatro Abstract The fundamental building blocks of an optical fiber transmission link are the optical source, the

More information

Dr. Monir Hossen ECE, KUET

Dr. Monir Hossen ECE, KUET Dr. Monir Hossen ECE, KUET 1 Outlines of the Class Principles of WDM DWDM, CWDM, Bidirectional WDM Components of WDM AWG, filter Problems with WDM Four-wave mixing Stimulated Brillouin scattering WDM Network

More information

Design of Ultra High Capacity DWDM System with Different Modulation Formats

Design of Ultra High Capacity DWDM System with Different Modulation Formats Design of Ultra High Capacity DWDM System with Different Modulation Formats A. Nandhini 1, K. Gokulakrishnan 2 1 PG Scholar, Department of Electronics & Communication Engineering, Regional Center, Anna

More information

Available online at ScienceDirect. Procedia Computer Science 93 (2016 )

Available online at   ScienceDirect. Procedia Computer Science 93 (2016 ) Available online at www.sciencedirect.com ScienceDirect Procedia Computer Science 93 (016 ) 647 654 6th International Conference On Advances In Computing & Communications, ICACC 016, 6-8 September 016,

More information

Improved Analysis of Hybrid Optical Amplifier in CWDM System

Improved Analysis of Hybrid Optical Amplifier in CWDM System Improved Analysis of Hybrid Optical Amplifier in CWDM System 1 Bandana Mallick, 2 Reeta Kumari, 3 Anirban Mukherjee, 4 Kunwar Parakram 1. Asst Proffesor in Dept. of ECE, GIET Gunupur 2, 3,4. Student in

More information

Performance Analysis Of An Ultra High Capacity 1 Tbps DWDM-RoF System For Very Narrow Channel Spacing

Performance Analysis Of An Ultra High Capacity 1 Tbps DWDM-RoF System For Very Narrow Channel Spacing Performance Analysis Of An Ultra High Capacity 1 Tbps DWDM-RoF System For Very Narrow Channel Spacing Viyoma Sarup* and Amit Gupta Chandigarh University Punjab, India *viyoma123@gmail.com Abstract A RoF

More information

RZ BASED DISPERSION COMPENSATION TECHNIQUE IN DWDM SYSTEM FOR BROADBAND SPECTRUM

RZ BASED DISPERSION COMPENSATION TECHNIQUE IN DWDM SYSTEM FOR BROADBAND SPECTRUM RZ BASED DISPERSION COMPENSATION TECHNIQUE IN DWDM SYSTEM FOR BROADBAND SPECTRUM Prof. Muthumani 1, Mr. Ayyanar 2 1 Professor and HOD, 2 UG Student, Department of Electronics and Communication Engineering,

More information

Performance of A Multicast DWDM Network Applied to the Yemen Universities Network using Quality Check Algorithm

Performance of A Multicast DWDM Network Applied to the Yemen Universities Network using Quality Check Algorithm Performance of A Multicast DWDM Network Applied to the Yemen Universities Network using Quality Check Algorithm Khaled O. Basulaim, Samah Ali Al-Azani Dept. of Information Technology Faculty of Engineering,

More information

Performance Analysis of dispersion compensation using Fiber Bragg Grating (FBG) in Optical Communication

Performance Analysis of dispersion compensation using Fiber Bragg Grating (FBG) in Optical Communication Research Article International Journal of Current Engineering and Technology E-ISSN 2277 416, P-ISSN 2347-5161 214 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Performance

More information

PERFORMANCE ANALYSIS OF WDM AND EDFA IN C-BAND FOR OPTICAL COMMUNICATION SYSTEM

PERFORMANCE ANALYSIS OF WDM AND EDFA IN C-BAND FOR OPTICAL COMMUNICATION SYSTEM www.arpapress.com/volumes/vol13issue1/ijrras_13_1_26.pdf PERFORMANCE ANALYSIS OF WDM AND EDFA IN C-BAND FOR OPTICAL COMMUNICATION SYSTEM M.M. Ismail, M.A. Othman, H.A. Sulaiman, M.H. Misran & M.A. Meor

More information

Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian

Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian m.karbassian@arizona.edu Contents Optical Communications: Review Optical Communications and Photonics Why Photonics?

More information

UNIT Write notes on broadening of pulse in the fiber dispersion?

UNIT Write notes on broadening of pulse in the fiber dispersion? UNIT 3 1. Write notes on broadening of pulse in the fiber dispersion? Ans: The dispersion of the transmitted optical signal causes distortion for both digital and analog transmission along optical fibers.

More information

Analysis of Self Phase Modulation Fiber nonlinearity in Optical Transmission System with Dispersion

Analysis of Self Phase Modulation Fiber nonlinearity in Optical Transmission System with Dispersion 36 Analysis of Self Phase Modulation Fiber nonlinearity in Optical Transmission System with Dispersion Supreet Singh 1, Kulwinder Singh 2 1 Department of Electronics and Communication Engineering, Punjabi

More information

WHITE PAPER LINK LOSS BUDGET ANALYSIS TAP APPLICATION NOTE LINK LOSS BUDGET ANALYSIS

WHITE PAPER LINK LOSS BUDGET ANALYSIS TAP APPLICATION NOTE LINK LOSS BUDGET ANALYSIS TAP APPLICATION NOTE LINK LOSS BUDGET ANALYSIS WHITE PAPER JULY 2017 1 Table of Contents Basic Information... 3 Link Loss Budget Analysis... 3 Singlemode vs. Multimode... 3 Dispersion vs. Attenuation...

More information

AC : FIBER OPTICS COURSE FOR UNDERGRADUATE ELECTRICAL ENGINEERING STUDENTS

AC : FIBER OPTICS COURSE FOR UNDERGRADUATE ELECTRICAL ENGINEERING STUDENTS AC 2009-385: FIBER OPTICS COURSE FOR UNDERGRADUATE ELECTRICAL ENGINEERING STUDENTS Lihong (Heidi) Jiao, Grand Valley State University American Society for Engineering Education, 2009 Page 14.630.1 Fiber

More information

Signal Conditioning Parameters for OOFDM System

Signal Conditioning Parameters for OOFDM System Chapter 4 Signal Conditioning Parameters for OOFDM System 4.1 Introduction The idea of SDR has been proposed for wireless transmission in 1980. Instead of relying on dedicated hardware, the network has

More information

Optical Transport Tutorial

Optical Transport Tutorial Optical Transport Tutorial 4 February 2015 2015 OpticalCloudInfra Proprietary 1 Content Optical Transport Basics Assessment of Optical Communication Quality Bit Error Rate and Q Factor Wavelength Division

More information

Qualifying Fiber for 10G Deployment

Qualifying Fiber for 10G Deployment Qualifying Fiber for 10G Deployment Presented by: Bob Chomycz, P.Eng. Email: BChomycz@TelecomEngineering.com Tel: 1.888.250.1562 www.telecomengineering.com 2017, Slide 1 of 25 Telecom Engineering Introduction

More information

UNIT - 7 WDM CONCEPTS AND COMPONENTS

UNIT - 7 WDM CONCEPTS AND COMPONENTS UNIT - 7 LECTURE-1 WDM CONCEPTS AND COMPONENTS WDM concepts, overview of WDM operation principles, WDM standards, Mach-Zehender interferometer, multiplexer, Isolators and circulators, direct thin film

More information

40Gb/s Optical Transmission System Testbed

40Gb/s Optical Transmission System Testbed The University of Kansas Technical Report 40Gb/s Optical Transmission System Testbed Ron Hui, Sen Zhang, Ashvini Ganesh, Chris Allen and Ken Demarest ITTC-FY2004-TR-22738-01 January 2004 Sponsor: Sprint

More information

2 in the multipath dispersion of the optical fibre. (b) Discuss the merits and drawbacks of cut bouls method of measurement of alternation.

2 in the multipath dispersion of the optical fibre. (b) Discuss the merits and drawbacks of cut bouls method of measurement of alternation. B.TECH IV Year I Semester (R09) Regular Examinations, November 2012 1 (a) Derive an expression for multiple time difference tt 2 in the multipath dispersion of the optical fibre. (b) Discuss the merits

More information

Performance Comparison of Pre-, Post-, and Symmetrical Dispersion Compensation for 96 x 40 Gb/s DWDM System using DCF

Performance Comparison of Pre-, Post-, and Symmetrical Dispersion Compensation for 96 x 40 Gb/s DWDM System using DCF Performance Comparison of Pre-, Post-, and Symmetrical Dispersion Compensation for 96 x 40 Gb/s DWDM System using Sabina #1, Manpreet Kaur *2 # M.Tech(Scholar) & Department of Electronics & Communication

More information

EDFA Applications in Test & Measurement

EDFA Applications in Test & Measurement EDFA Applications in Test & Measurement White Paper PN 200-0600-00 Revision 1.1 September 2003 Calmar Optcom, Inc www.calamropt.com Overview Erbium doped fiber amplifiers (EDFAs) amplify optical pulses

More information

Performance Investigation of Dispersion Compensation Techniques in 32-Channel DWDM System

Performance Investigation of Dispersion Compensation Techniques in 32-Channel DWDM System Performance Investigation of Dispersion Compensation Techniques in 32-Channel DWDM System Deepak Sharma ECE Department, UIET, MDU Rohtak Payal ECE Department, UIET, MDU Rohtak Rajbir Singh ECE Department,

More information

5 GBPS Data Rate Transmission in a WDM Network using DCF with FBG for Dispersion Compensation

5 GBPS Data Rate Transmission in a WDM Network using DCF with FBG for Dispersion Compensation ABHIYANTRIKI 5 GBPS Data Rate Meher et al. An International Journal of Engineering & Technology (A Peer Reviewed & Indexed Journal) Vol. 4, No. 4 (April, 2017) http://www.aijet.in/ eissn: 2394-627X 5 GBPS

More information

Application of optical system simulation software in a fiber optic telecommunications program

Application of optical system simulation software in a fiber optic telecommunications program Rochester Institute of Technology RIT Scholar Works Presentations and other scholarship 2004 Application of optical system simulation software in a fiber optic telecommunications program Warren Koontz

More information

Performance Analysis of Designing a Hybrid Optical Amplifier (HOA) for 32 DWDM Channels in L-band by using EDFA and Raman Amplifier

Performance Analysis of Designing a Hybrid Optical Amplifier (HOA) for 32 DWDM Channels in L-band by using EDFA and Raman Amplifier Performance Analysis of Designing a Hybrid Optical Amplifier (HOA) for 32 DWDM Channels in L-band by using EDFA and Raman Amplifier Aied K. Mohammed, PhD Department of Electrical Engineering, University

More information

UNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING. FINAL EXAMINATION, April 2017 DURATION: 2.5 hours

UNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING. FINAL EXAMINATION, April 2017 DURATION: 2.5 hours UNIVERSITY OF TORONTO FACULTY OF APPLIED SCIENCE AND ENGINEERING ECE4691-111 S - FINAL EXAMINATION, April 2017 DURATION: 2.5 hours Optical Communication and Networks Calculator Type: 2 Exam Type: X Examiner:

More information

Implementation of Dense Wavelength Division Multiplexing FBG

Implementation of Dense Wavelength Division Multiplexing FBG AUSTRALIAN JOURNAL OF BASIC AND APPLIED SCIENCES ISSN:1991-8178 EISSN: 2309-8414 Journal home page: www.ajbasweb.com Implementation of Dense Wavelength Division Multiplexing Network with FBG 1 J. Sharmila

More information

DISPERSION COMPENSATION IN OFC USING FBG

DISPERSION COMPENSATION IN OFC USING FBG DISPERSION COMPENSATION IN OFC USING FBG 1 B.GEETHA RANI, 2 CH.PRANAVI 1 Asst. Professor, Dept. of Electronics and Communication Engineering G.Pullaiah College of Engineering Kurnool, Andhra Pradesh billakantigeetha@gmail.com

More information

Mixing TrueWave RS Fiber with Other Single-Mode Fiber Designs Within a Network

Mixing TrueWave RS Fiber with Other Single-Mode Fiber Designs Within a Network Mixing TrueWave RS Fiber with Other Single-Mode Fiber Designs Within a Network INTRODUCTION A variety of single-mode fiber types can be found in today s installed networks. Standards bodies, such as the

More information

International Journal of Advanced Research in Computer Science and Software Engineering

International Journal of Advanced Research in Computer Science and Software Engineering ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: Performance Analysis of WDM/SCM System Using EDFA Mukesh Kumar

More information

UNIT - 7 WDM CONCEPTS AND COMPONENTS

UNIT - 7 WDM CONCEPTS AND COMPONENTS UNIT - 7 WDM CONCEPTS AND COMPONENTS WDM concepts, overview of WDM operation principles, WDM standards, Mach-Zehender interferometer, multiplexer, Isolators and circulators, direct thin film filters, active

More information

Performance Analysis of WDM-FSO Link under Turbulence Channel

Performance Analysis of WDM-FSO Link under Turbulence Channel Available online at www.worldscientificnews.com WSN 50 (2016) 160-173 EISSN 2392-2192 Performance Analysis of WDM-FSO Link under Turbulence Channel Mazin Ali A. Ali Department of Physics, College of Science,

More information

ECEN689: Special Topics in Optical Interconnects Circuits and Systems Spring 2016

ECEN689: Special Topics in Optical Interconnects Circuits and Systems Spring 2016 ECEN689: Special Topics in Optical Interconnects Circuits and Systems Spring 016 Lecture 7: Transmitter Analysis Sam Palermo Analog & Mixed-Signal Center Texas A&M University Optical Modulation Techniques

More information

Long-Haul DWDM RF Fiber Optic Link System

Long-Haul DWDM RF Fiber Optic Link System EMCORE Corporation - Broadband Division, Alhambra, CA, USA ABSTRACT EMCORE s vertically integrated ISO-9001 facility, staffed with our optics/rf engineering team, has been successfully designing and manufacturing

More information

Performance Analysis of WDM RoF-EPON Link with and without DCF and FBG

Performance Analysis of WDM RoF-EPON Link with and without DCF and FBG Optics and Photonics Journal, 2013, 3, 163-168 http://dx.doi.org/10.4236/opj.2013.32027 Published Online June 2013 (http://www.scirp.org/journal/opj) Performance Analysis of WDM RoF-EPON Link with and

More information

Dispersion in Optical Fibers

Dispersion in Optical Fibers Dispersion in Optical Fibers By Gildas Chauvel Anritsu Corporation TABLE OF CONTENTS Introduction Chromatic Dispersion (CD): Definition and Origin; Limit and Compensation; and Measurement Methods Polarization

More information

Photonics (OPTI 510R 2017) - Final exam. (May 8, 10:30am-12:30pm, R307)

Photonics (OPTI 510R 2017) - Final exam. (May 8, 10:30am-12:30pm, R307) Photonics (OPTI 510R 2017) - Final exam (May 8, 10:30am-12:30pm, R307) Problem 1: (30pts) You are tasked with building a high speed fiber communication link between San Francisco and Tokyo (Japan) which

More information

Comparative Analysis of Various Optimization Methodologies for WDM System using OptiSystem

Comparative Analysis of Various Optimization Methodologies for WDM System using OptiSystem Comparative Analysis of Various Optimization Methodologies for WDM System using OptiSystem Koushik Mukherjee * Department of Electronics and Communication, Dublin Institute of Technology, Ireland E-mail:

More information

SYLLABUS Optical Fiber Communication

SYLLABUS Optical Fiber Communication SYLLABUS Optical Fiber Communication Subject Code : IA Marks : 25 No. of Lecture Hrs/Week : 04 Exam Hours : 03 Total no. of Lecture Hrs. : 52 Exam Marks : 100 UNIT - 1 PART - A OVERVIEW OF OPTICAL FIBER

More information

Performance Analysis of Dwdm System With Different Modulation Techique And Photodiode

Performance Analysis of Dwdm System With Different Modulation Techique And Photodiode The International Journal Of Engineering And Science (IJES) Volume 2 Issue 7 Pages 07-11 2013 ISSN(e): 2319 1813 ISSN(p): 2319 1805 Performance Analysis of Dwdm System With Different Modulation Techique

More information

RADIO-OVER-FIBER TRANSPORT SYSTEMS BASED ON DFB LD WITH MAIN AND 1 SIDE MODES INJECTION-LOCKED TECHNIQUE

RADIO-OVER-FIBER TRANSPORT SYSTEMS BASED ON DFB LD WITH MAIN AND 1 SIDE MODES INJECTION-LOCKED TECHNIQUE Progress In Electromagnetics Research Letters, Vol. 7, 25 33, 2009 RADIO-OVER-FIBER TRANSPORT SYSTEMS BASED ON DFB LD WITH MAIN AND 1 SIDE MODES INJECTION-LOCKED TECHNIQUE H.-H. Lu, C.-Y. Li, C.-H. Lee,

More information

Spectral Response of FWM in EDFA for Long-haul Optical Communication

Spectral Response of FWM in EDFA for Long-haul Optical Communication Spectral Response of FWM in EDFA for Long-haul Optical Communication Lekshmi.S.R 1, Sindhu.N 2 1 P.G.Scholar, Govt. Engineering College, Wayanad, Kerala, India 2 Assistant Professor, Govt. Engineering

More information

Agilent 83430A Lightwave Digital Source Product Overview

Agilent 83430A Lightwave Digital Source Product Overview Agilent Lightwave Digital Source Product Overview SDH/SONET Compliant DFB laser source for digital, WDM, and analog test up to 2.5 Gb/s 52 Mb/s STM-0/OC-1 155 Mb/s STM-1/OC-3 622 Mb/s STM-4/OC-12 2488

More information

Fiber Optic Communications Communication Systems

Fiber Optic Communications Communication Systems INTRODUCTION TO FIBER-OPTIC COMMUNICATIONS A fiber-optic system is similar to the copper wire system in many respects. The difference is that fiber-optics use light pulses to transmit information down

More information

Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian

Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian Optical Communications and Networks - Review and Evolution (OPTI 500) Massoud Karbassian m.karbassian@arizona.edu Contents Optical Communications: Review Optical Communications and Photonics Why Photonics?

More information

Hands-on Active Learning in Fiber Optics Course

Hands-on Active Learning in Fiber Optics Course Paper ID #6344 Hands-on Active Learning in Fiber Optics Course Dr. Lihong (Heidi) Jiao, Grand Valley State University Dr. Jiao is an Associate Professor in the Padnos College of Engineering and Computing

More information

21. (i) Briefly explain the evolution of fiber optic system (ii) Compare the configuration of different types of fibers. or 22. (b)(i) Derive modal eq

21. (i) Briefly explain the evolution of fiber optic system (ii) Compare the configuration of different types of fibers. or 22. (b)(i) Derive modal eq Unit-1 Part-A FATIMA MICHAEL COLLEGE OF ENGINEERING & TECHNOLOGY Senkottai Village, Madurai Sivagangai Main Road, Madurai - 625 020. [An ISO 9001:2008 Certified Institution] DEPARTMENT OF ELECTRONICS AND

More information

Pass Cisco Exam

Pass Cisco Exam Pass Cisco 642-321 Exam Number: 642-321 Passing Score: 800 Time Limit: 120 min File Version: 38.8 http://www.gratisexam.com/ Pass Cisco 642-321 Exam Exam Name : Cisco Optical SDH Exam (SDH) Braindumps

More information

Introduction Fundamental of optical amplifiers Types of optical amplifiers

Introduction Fundamental of optical amplifiers Types of optical amplifiers ECE 6323 Introduction Fundamental of optical amplifiers Types of optical amplifiers Erbium-doped fiber amplifiers Semiconductor optical amplifier Others: stimulated Raman, optical parametric Advanced application:

More information

A Novel Design Technique for 32-Channel DWDM system with Hybrid Amplifier and DCF

A Novel Design Technique for 32-Channel DWDM system with Hybrid Amplifier and DCF Research Manuscript Title A Novel Design Technique for 32-Channel DWDM system with Hybrid Amplifier and DCF Dr.Punal M.Arabi, Nija.P.S PG Scholar, Professor, Department of ECE, SNS College of Technology,

More information

S Optical Networks Course Lecture 4: Transmission System Engineering

S Optical Networks Course Lecture 4: Transmission System Engineering S-72.3340 Optical Networks Course Lecture 4: Transmission System Engineering Edward Mutafungwa Communications Laboratory, Helsinki University of Technology, P. O. Box 2300, FIN-02015 TKK, Finland Tel:

More information

TECHNICAL ARTICLE: DESIGN BRIEF FOR INDUSTRIAL FIBRE OPTICAL NETWORKS

TECHNICAL ARTICLE: DESIGN BRIEF FOR INDUSTRIAL FIBRE OPTICAL NETWORKS TECHNICAL ARTICLE: DESIGN BRIEF FOR INDUSTRIAL FIBRE OPTICAL NETWORKS Designing and implementing a fibre optical based communication network intended to replace or augment an existing communication network

More information

Next-Generation Optical Fiber Network Communication

Next-Generation Optical Fiber Network Communication Next-Generation Optical Fiber Network Communication Naveen Panwar; Pankaj Kumar & manupanwar46@gmail.com & chandra.pankaj30@gmail.com ABSTRACT: In all over the world, much higher order off modulation formats

More information

Emerging Subsea Networks

Emerging Subsea Networks Optimization of Pulse Shaping Scheme and Multiplexing/Demultiplexing Configuration for Ultra-Dense WDM based on mqam Modulation Format Takanori Inoue, Yoshihisa Inada, Eduardo Mateo, Takaaki Ogata (NEC

More information

Performance Analysis Of Hybrid Optical OFDM System With High Order Dispersion Compensation

Performance Analysis Of Hybrid Optical OFDM System With High Order Dispersion Compensation Performance Analysis Of Hybrid Optical OFDM System With High Order Dispersion Compensation Manpreet Singh Student, University College of Engineering, Punjabi University, Patiala, India. Abstract Orthogonal

More information

Practical Aspects of Raman Amplifier

Practical Aspects of Raman Amplifier Practical Aspects of Raman Amplifier Contents Introduction Background Information Common Types of Raman Amplifiers Principle Theory of Raman Gain Noise Sources Related Information Introduction This document

More information

Mahendra Kumar1 Navneet Agrawal2

Mahendra Kumar1 Navneet Agrawal2 International Journal of Scientific & Engineering Research, Volume 6, Issue 9, September-2015 1202 Performance Enhancement of DCF Based Wavelength Division Multiplexed Passive Optical Network (WDM-PON)

More information

Phase Modulator for Higher Order Dispersion Compensation in Optical OFDM System

Phase Modulator for Higher Order Dispersion Compensation in Optical OFDM System Phase Modulator for Higher Order Dispersion Compensation in Optical OFDM System Manpreet Singh 1, Karamjit Kaur 2 Student, University College of Engineering, Punjabi University, Patiala, India 1. Assistant

More information

ARTICLE IN PRESS. Optik 119 (2008)

ARTICLE IN PRESS. Optik 119 (2008) Optik 119 (28) 39 314 Optik Optics www.elsevier.de/ijleo Timing jitter dependence on data format for ideal dispersion compensated 1 Gbps optical communication systems Manjit Singh a, Ajay K. Sharma b,,

More information

11.1 Gbit/s Pluggable Small Form Factor DWDM Optical Transceiver Module

11.1 Gbit/s Pluggable Small Form Factor DWDM Optical Transceiver Module INFORMATION & COMMUNICATIONS 11.1 Gbit/s Pluggable Small Form Factor DWDM Transceiver Module Yoji SHIMADA*, Shingo INOUE, Shimako ANZAI, Hiroshi KAWAMURA, Shogo AMARI and Kenji OTOBE We have developed

More information

Dispersion Pre-Compensation for a Multi-wavelength Erbium Doped Fiber Laser Using Cascaded Fiber Bragg Gratings

Dispersion Pre-Compensation for a Multi-wavelength Erbium Doped Fiber Laser Using Cascaded Fiber Bragg Gratings Journal of Applied Sciences Research, 5(10): 1744749, 009 009, INSInet Publication Dispersion Pre-Compensation for a Multi-wavelength Erbium Doped Fiber Laser Using Cascaded Fiber Bragg Gratings 1 1 1

More information

Lecture 5 Transmission. Physical and Datalink Layers: 3 Lectures

Lecture 5 Transmission. Physical and Datalink Layers: 3 Lectures Lecture 5 Transmission Peter Steenkiste School of Computer Science Department of Electrical and Computer Engineering Carnegie Mellon University 15-441 Networking, Spring 2004 http://www.cs.cmu.edu/~prs/15-441

More information

Advanced Optical Communications Prof. R. K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay

Advanced Optical Communications Prof. R. K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay Advanced Optical Communications Prof. R. K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay Lecture No. # 27 EDFA In the last lecture, we talked about wavelength

More information

All-VCSEL based digital coherent detection link for multi Gbit/s WDM passive optical networks

All-VCSEL based digital coherent detection link for multi Gbit/s WDM passive optical networks All-VCSEL based digital coherent detection link for multi Gbit/s WDM passive optical networks Roberto Rodes, 1,* Jesper Bevensee Jensen, 1 Darko Zibar, 1 Christian Neumeyr, 2 Enno Roenneberg, 2 Juergen

More information

3. Design of single-channel IM/DD systems

3. Design of single-channel IM/DD systems 3. Design of single-channel IM/DD systems Optical Communication Systems and Networks 2/38 BIBLIOGRAPHY Theory: Fiber-Optic Communications Systems Govind P. Agrawal, Chapter 5, Lightwave Systems, John Wiley

More information

Technical Feasibility of 4x25 Gb/s PMD for 40km at 1310nm using SOAs

Technical Feasibility of 4x25 Gb/s PMD for 40km at 1310nm using SOAs Technical Feasibility of 4x25 Gb/s PMD for 40km at 1310nm using SOAs Ramón Gutiérrez-Castrejón RGutierrezC@ii.unam.mx Tel. +52 55 5623 3600 x8824 Universidad Nacional Autonoma de Mexico Introduction A

More information

PERFORMANCE ANALYSIS OF OPTICAL TRANSMISSION SYSTEM USING FBG AND BESSEL FILTERS

PERFORMANCE ANALYSIS OF OPTICAL TRANSMISSION SYSTEM USING FBG AND BESSEL FILTERS PERFORMANCE ANALYSIS OF OPTICAL TRANSMISSION SYSTEM USING FBG AND BESSEL FILTERS Antony J. S., Jacob Stephen and Aarthi G. ECE Department, School of Electronics Engineering, VIT University, Vellore, Tamil

More information

UNIT - 6 ANALOG AND DIGITAL LINKS

UNIT - 6 ANALOG AND DIGITAL LINKS UNIT - 6 ANALOG AND DIGITAL LINKS Analog links Introduction, overview of analog links, CNR, multichannel transmission techniques, RF over fiber, key link parameters, Radio over fiber links, microwave photonics.

More information

Lecture 5 Transmission

Lecture 5 Transmission Lecture 5 Transmission David Andersen Department of Computer Science Carnegie Mellon University 15-441 Networking, Spring 2005 http://www.cs.cmu.edu/~srini/15-441/s05 1 Physical and Datalink Layers: 3

More information

ANALYSIS OF DISPERSION COMPENSATION IN A SINGLE MODE OPTICAL FIBER COMMUNICATION SYSTEM

ANALYSIS OF DISPERSION COMPENSATION IN A SINGLE MODE OPTICAL FIBER COMMUNICATION SYSTEM ANAYSIS OF DISPERSION COMPENSATION IN A SINGE MODE OPTICA FIBER COMMUNICATION SYSTEM Sani Abdullahi Mohammed 1, Engr. Yahya Adamu and Engr. Matthew Kwatri uka 3 1,,3 Department of Electrical and Electronics

More information

Compensation of Dispersion in 10 Gbps WDM System by Using Fiber Bragg Grating

Compensation of Dispersion in 10 Gbps WDM System by Using Fiber Bragg Grating International Journal of Computational Engineering & Management, Vol. 15 Issue 5, September 2012 www..org 16 Compensation of Dispersion in 10 Gbps WDM System by Using Fiber Bragg Grating P. K. Raghav 1,

More information

Emerging Subsea Networks

Emerging Subsea Networks EVALUATION OF NONLINEAR IMPAIRMENT FROM NARROW- BAND UNPOLARIZED IDLERS IN COHERENT TRANSMISSION ON DISPERSION-MANAGED SUBMARINE CABLE SYSTEMS Masashi Binkai, Keisuke Matsuda, Tsuyoshi Yoshida, Naoki Suzuki,

More information

Analysis of Transmitting 40Gb/s CWDM Based on Extinction Value and Fiber Length Using EDFA

Analysis of Transmitting 40Gb/s CWDM Based on Extinction Value and Fiber Length Using EDFA IOSR Journal of Engineering (IOSRJEN) ISSN (e): 2250-3021, ISSN (p): 2278-8719 Vol. 04, Issue 02 (February. 2014), V6 PP 46-52 www.iosrjen.org Analysis of Transmitting 40Gb/s CWDM Based on Extinction Value

More information

Optical Fibers p. 1 Basic Concepts p. 1 Step-Index Fibers p. 2 Graded-Index Fibers p. 4 Design and Fabrication p. 6 Silica Fibers p.

Optical Fibers p. 1 Basic Concepts p. 1 Step-Index Fibers p. 2 Graded-Index Fibers p. 4 Design and Fabrication p. 6 Silica Fibers p. Preface p. xiii Optical Fibers p. 1 Basic Concepts p. 1 Step-Index Fibers p. 2 Graded-Index Fibers p. 4 Design and Fabrication p. 6 Silica Fibers p. 6 Plastic Optical Fibers p. 9 Microstructure Optical

More information

Determination of ideal Fibre Bragg Grating (FBG) length for Optical Transmission System

Determination of ideal Fibre Bragg Grating (FBG) length for Optical Transmission System Determination of ideal Fibre Bragg Grating (FBG) length for Optical Transmission System Aastha Singhal SENSE school, VIT University Vellore, India Akanksha Singh SENSE school, VIT University Vellore, India

More information

Introduction to BER testing of WDM systems

Introduction to BER testing of WDM systems Introduction to BER testing of WDM systems Application note 1299 Wavelength division multiplexing (WDM) is a new and exciting technology for migrating the core optical transmission network to higher bandwidths.

More information

Downstream Transmission in a WDM-PON System Using a Multiwavelength SOA-Based Fiber Ring Laser Source

Downstream Transmission in a WDM-PON System Using a Multiwavelength SOA-Based Fiber Ring Laser Source JOURNAL OF L A TEX CLASS FILES, VOL. X, NO. XX, XXXX XXX 1 Downstream Transmission in a WDM-PON System Using a Multiwavelength SOA-Based Fiber Ring Laser Source Jérôme Vasseur, Jianjun Yu Senior Member,

More information

is a method of transmitting information from one place to another by sending light through an optical fiber. The light forms an electromagnetic

is a method of transmitting information from one place to another by sending light through an optical fiber. The light forms an electromagnetic is a method of transmitting information from one place to another by sending light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. The

More information

FIBER OPTICS. Prof. R.K. Shevgaonkar. Department of Electrical Engineering. Indian Institute of Technology, Bombay. Lecture: 26

FIBER OPTICS. Prof. R.K. Shevgaonkar. Department of Electrical Engineering. Indian Institute of Technology, Bombay. Lecture: 26 FIBER OPTICS Prof. R.K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay Lecture: 26 Wavelength Division Multiplexed (WDM) Systems Fiber Optics, Prof. R.K. Shevgaonkar,

More information

Chapter 12: Optical Amplifiers: Erbium Doped Fiber Amplifiers (EDFAs)

Chapter 12: Optical Amplifiers: Erbium Doped Fiber Amplifiers (EDFAs) Chapter 12: Optical Amplifiers: Erbium Doped Fiber Amplifiers (EDFAs) Prof. Dr. Yaocheng SHI ( 时尧成 ) yaocheng@zju.edu.cn http://mypage.zju.edu.cn/yaocheng 1 Traditional Optical Communication System Loss

More information

Optimisation of DSF and SOA based Phase Conjugators. by Incorporating Noise-Suppressing Fibre Gratings

Optimisation of DSF and SOA based Phase Conjugators. by Incorporating Noise-Suppressing Fibre Gratings Optimisation of DSF and SOA based Phase Conjugators by Incorporating Noise-Suppressing Fibre Gratings Paper no: 1471 S. Y. Set, H. Geiger, R. I. Laming, M. J. Cole and L. Reekie Optoelectronics Research

More information

CONTROLLABLE WAVELENGTH CHANNELS FOR MULTIWAVELENGTH BRILLOUIN BISMUTH/ERBIUM BAS-ED FIBER LASER

CONTROLLABLE WAVELENGTH CHANNELS FOR MULTIWAVELENGTH BRILLOUIN BISMUTH/ERBIUM BAS-ED FIBER LASER Progress In Electromagnetics Research Letters, Vol. 9, 9 18, 29 CONTROLLABLE WAVELENGTH CHANNELS FOR MULTIWAVELENGTH BRILLOUIN BISMUTH/ERBIUM BAS-ED FIBER LASER H. Ahmad, M. Z. Zulkifli, S. F. Norizan,

More information