Dynamic gain-tilt compensation using electronic variable optical attenuators and a thin film filter spectral tilt monitor

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Dynamic gain-tilt compensation using electronic variable optical attenuators and a thin film filter spectral tilt monitor"

Transcription

1 Dynamic gain-tilt compensation using electronic variable optical attenuators and a thin film filter spectral tilt monitor P. S. Chan, C. Y. Chow, and H. K. Tsang Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong, China Abstract: An all-optical dynamic gain tilt compensator (DGTC) is proposed and experimentally demonstrated. A single wide-band thin film filter and a pair of photodetector allow the DGTC to distinguish band add/drop position. Power fluctuations from EDFA gain tilt were reduced with fast electronic variable optical attenuators Optical Society of America OCIS codes: ( ) Fiber, erbium; ( ) Multiplexing References and links 1. A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, EDFA transient response to channel loss in WDM transmission system, IEEE Photon. Technol. Lett. 9, , (1997). 2. A. V. Tran, C-J Chae, and R. S. Tucker, All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators, IEE Electron. Lett. 39, , (2003). 3. A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, EDFA gain transients: experimental demonstration of a low cost electronic control, IEEE Photon. Technol. Lett. 15, (2003). 4. Y. Sun, A. K. Srivastava, J. Zhou, and J. W. Sulhoff, Optical fiber amplifiers for WDM optical networks, Bell Labs Tech. J (1999). 5. P. C. Becker, N. A. Olsson, and J. R. Simpson, Erbium-doped fiber amplifiers: Fundamentals and technology, (Academic Press, 1999), Chap P. S. Chan, C. Y. Chow, and H. K. Tsang, EDFA per-band gain-tilt compensation, in conference on Optical Amplifier and their Applications (Washington, DC, Optical Society of America, 2006). 7. H. A. Macleod, Thin film optical filter, 3 rd ed., (Bristol & Philadelphia, Institute of Physics Publishing, 2001), Chap See for example the mico-optic thin film filter (TFF) bandpass products at 1. Introduction The presence of saturated erbium doped fiber amplifiers (EDFA) in optical networks which experience abrupt change of data traffic optical add/drop will introduce power transients in the surviving channels [1] and is a potential issue for future reconfigurable networks [2]. Dynamic transient control is therefore essential if reconfigurable optical add/drop multiplexers (ROADM) are to be used in optical mesh networks. Previous work on transient compensation, including all-optical control assisted by linearized electrical circuit [3] and link control scheme [4], have demonstrated that transients may be suppressed with minimal interruption in network traffic In a metro network, band add/drop will however also introduce a wavelength dependence in the gain transient because of the predominantly homogeneous broadened gain characteristic of EDFA [5]. Dynamic gain tilt must therefore also be catered for to avoid the accumulation of excess optical power in optical channels in reconfigurable optical mesh networks. In this paper, we propose and perform a proof-ofconcept demonstration of a per-link based dynamic gain tilt compensator (DGTC) employing a feed forward controlled electronic variable optical attenuator (EVOA). The EVOA controller uses a pair of thin film filter for low cost gain tilt monitoring and provides a stable reference for the dynamic gain tilt compensation [6]. We demonstrate the operation of the (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9022

2 system in a three band DWDM system, in which the wavelengths are added or dropped in one of three bands within the EDFA gain bandwidth. 2. Dynamic gain tilt compensation We measure the dynamic gain tilt after dropping channels at different wavelengths in an EDFA link. In Fig. 1, for example, dropping of Band A introduces 0.40 db power increase of channels in Band B while channels in Band C undergo 0.34 db power increases. Due to the wavelength dependent gain characteristics of EDFAs, dropping of longer wavelengths (Band C) causes higher power fluctuation than that of shorter wavelengths resulting in dynamic gain tilt of the whole system. The resultant dynamic gain tilt can propagate and accumulate throughout the reconfigurable network, and is difficult to compensate at the receiver since the received traffic may have been routed all-optically between an arbitrary number of nodes and transmitted through a variable number of EDFAs. Power Fluctuation of surviving channels Power increased (db) Power Fluctuation of surviving channels Power increased (db) Power Fluctuation of surviving channels Power increased (db) C dropped Band A Band B Band C B dropped Band A Band B Band C A dropped Band A Band B Band C Power (dbm) Power (dbm) Power (dbm) Drop C Drop B Drop A Fig. 1. Power fluctuation induced by dropping neighboring bands sharing a common EDFA. The proposed dynamic gain tilt compensator (DGTC) needs to determine the position of band add/drop and generate the appropriate optical attenuation to compensate the change in gain in each of the surviving bands to maintain a near constant gain level immediately after each add or drop. The DGTC employs a pair of photodiodes with different spectral responses to measure the gain tilt. A small fraction of the power in the optical fiber transmission line is tapped, split and detected by the two photodiodes. One of the two photodiodes has the spectral filter placed in front of it as shown in Fig. 2. By measuring the relative output from each photodiode and using the known spectral response of the optical filter, it is possible to determine the wavelength band of the add/drop and generate the appropriate control signal for the predefined gain tilt compensation for the given EDFA link. The electronic control circuit operates with 2.2µs delay from the detectors to EVOA, and a fiber delay was inserted to cater for this delay. (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9023

3 EVOA Array Band A Band B Band C Cascaded EDFA 80/20 coupler Fiber Delay 3dB coupler Control Circuitry Fig. 2. Schematic diagram of dynamic gain tilt compensator (DGTC). The thin film filter used for the gain tilt monitor was designed by Essential Macleod [7] and was fabricated by an ion beam assisted e-beam deposition system. The filter consists of alternating layers of SiO 2 / Ta 2 O 5. Using the measurement of average detected power from the filtered and unfiltered photodiodes, the control circuit shown in Fig. 3 generated the required outputs needed to drive the electronic variable optical attenuator. Deviation of power levels detected from the photodiode pair gave an indication of the wavelength position of the optical band that was added or dropped. The logarithmic amplifier produced a signal proportional to the log of the ratio of the photodiode signals. This was fed to a window comparator and analog switch which outputted the pre-calibrated current levels for the precise power adjustments needed for the gain tilt compensation. Coated PD Uncoated PD Logarithmic Amplifier V log (A/B) Electronic Control Comparator (V ref ) Analog Switch Fig. 3. Block diagram of control circuit to produce the gain tilt compensation for controlling different bands. 3. Experimental results We demonstrated the operation of the DGTC in a three-band system containing a single unclamped EDFA without additional gain control. Each band (namely Band A, B and C) consists of 8 DWDM channels (100 GHz spacing) with equalized optical power after the EDFA link as shown in Fig. 4(a). A near logarithmic filter response (near -0.3 db/nm) was used with one of the photodiodes. The spectral response of all three bands after this logarithmic filter is shown in Fig. 4(b). The free space coupling loss of filter and photodiode was 3 db. Table 1 summarizes the reference level of the control circuit with fixed power ratio. With add/drop of different bands inducing average power fluctuation, the power ratio differs from the reference level and drives the EVOA to various attenuations. The EVOA may be biased at a non-zero attenuation so that adding of bands (or decrease of power in surviving channels) may be compensated by reducing the drive current. (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9024

4 Table 1. Power detected after EDFA under different filter responses. Power detected Power detected Power Ratio (Without filter) (With filter) Band A dBm dBm 3.40 Band B dBm dBm 6.18 Band C dBm dBm Transmittance (dbm) Transmittance (dbm) Fig. 4. Spectral response of Band A (red), Band B (blue) and Band C (green) with (a) spectrum from gain flattened reference and (b) spectrum passing through thin film filter. We experimentally tested the gain tilt compensation by modulating Band A using an optical modulator at a frequency of 1 khz. 24 channels carrying -35dBm optical power each were amplified by a saturated unclamped EDFA with 23dB gain for each channel. A flattened spectrum after EDFA was obtained after gain flattening technique as appear in Fig. 4 (left). The removal of Band A causes average power fluctuations in Band B (17%) and Band C (12%) after the constant-pump-current EDFA. With the DGTC, power fluctuations were reduced as shown in Fig. 5. Without DGTC With DGTC 60uW/div; 200us/div Band B 60uW/div; 200us/div Band C Fig. 5. Power fluctuation before and after dynamic gain tilt compensator (Left: Band B; Right: Band C) with respect to channels add and drop in Band A. Finally we compare the 10 Gbit/s PRBS bit error rate (BER) of a surviving channel in Band B with and without compensation. Figure 6 shows the BER after 3m and 40km optical fiber before and after the transient compensator is added. 3 db power penalty improvement was observed after 3 meters fiber transmission. If the uncompensated signal is allowed to travel through 40km fiber (without dispersion compensation), the signal is degraded by the add/drop as shown in the inset of Fig. 6. The eye diagram of the (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9025

5 uncompensated signal shows two-level amplitude induced by add/drop of Band A channels, and this is removed by the DGTC. 3m after EDFA, NO Compensation 40km after EDFA, NO compensation 3m after EDFA, WITH compensation 40km after EDFA, WITH compensation Bit Error Rate 1E-01 1E-02 1E-03 1E-04 1E-05 1E-06 1E-07 1E-08 1E-09 1E Received Optical Power (dbm) Fig. 6. Bit-error-rate test of compensated and un-compensated 10Gbit/s PRBS using feedforward compensation scheme. The inset shows eye diagrams of demultiplexed optical outputs. In the experiment an 80:20 fiber coupler was used to tap the signal from the transmission line and arrayed waveguide gratings were used for the wavelength multiplexer and demultiplexer. The total loss of the gain tilt compensator was about 7 db comprising db insertion loss for the EVOAs, 1 db loss from the 20% tap for the gain tilt monitor and about 5 db insertion loss from the arrayed waveguide grating based wavelength demultiplexers and multiplexers. The insertion loss may be greatly reduced if lower insertion loss multiplexers/demultiplexers were used. A lower loss implementation based on commercially available thin film filter filters for the mulitplexers and demultiplexers [8] is proposed in Fig. 7. The thin film filter based fiber-pigtailed multiplexers and demultiplexers have transmission and reflection losses of 0.6 db and 0.4 db, respectively. With EVOA of less than 2 db insertion loss, it should be possible to reduce the insertion loss of the proposed compensation scheme to less than 4 db. (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9026

6 A+B+C Band A pass EVOA A B+C Band B pass EVOA B C EVOA C A+B A+B+C Fig. 7. Low loss implentation of DGTC using thin film filter based bandpass multiplexers. 4. Discussion and conclusion The gain tilt detection via the use of a pair of photodiodes and a thin film filter was found to operate reliably in the three-band system. The stability and sensitivity of dynamic gain tilt compensation may be improved by using a steeper slope filter. The technique provides optically transparent compensation and is suitable for re-configurable optical network at different bitrates. The tilt monitoring and compensation scheme has potential for low cost implementation by depositing the required thin film filter onto the photodiode die for minimizing the package size and potential integration with an electronic variable optical attenuator. In summary, we proposed and demonstrated a dynamic gain tilt compensator (DGTC) using thin film filter monitoring technique for different band power fluctuation. The alloptical gain tilt compensation is potentially low cost and bitrate transparent and may make it attractive for future reconfigurable and banded DWDM networks. Acknowledgments This work was fully funded by RGC Earmarked grant CUHK4198/03E. (C) 2006 OSA 2 October 2006 / Vol. 14, No. 20 / OPTICS EXPRESS 9027

Transient Control in Dynamically Reconfigured Networks with Cascaded Erbium Doped Fiber Amplifiers

Transient Control in Dynamically Reconfigured Networks with Cascaded Erbium Doped Fiber Amplifiers Transient Control in Dynamically Reconfigured Networks with Cascaded Erbium Doped Fiber Amplifiers Lei Zong, Ting Wang lanezong@nec-labs.com NEC Laboratories America, Princeton, New Jersey, USA WOCC 2007

More information

A WDM passive optical network enabling multicasting with color-free ONUs

A WDM passive optical network enabling multicasting with color-free ONUs A WDM passive optical network enabling multicasting with color-free ONUs Yue Tian, Qingjiang Chang, and Yikai Su * State Key Laboratory of Advanced Optical Communication Systems and Networks, Department

More information

Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber

Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber Multi-wavelength laser generation with Bismuthbased Erbium-doped fiber H. Ahmad 1, S. Shahi 1 and S. W. Harun 1,2* 1 Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia 2 Department

More information

EDFA TRANSIENT REDUCTION USING POWER SHAPING

EDFA TRANSIENT REDUCTION USING POWER SHAPING Proceedings of the Eighth IASTED International Conference WIRELESS AND OPTICAL COMMUNICATIONS (WOC 2008) May 26-28, 2008 Quebec City, Quebec, Canada EDFA TRANSIENT REDUCTION USING POWER SHAPING Trent Jackson

More information

Gigabit Transmission in 60-GHz-Band Using Optical Frequency Up-Conversion by Semiconductor Optical Amplifier and Photodiode Configuration

Gigabit Transmission in 60-GHz-Band Using Optical Frequency Up-Conversion by Semiconductor Optical Amplifier and Photodiode Configuration 22 Gigabit Transmission in 60-GHz-Band Using Optical Frequency Up-Conversion by Semiconductor Optical Amplifier and Photodiode Configuration Jun-Hyuk Seo, and Woo-Young Choi Department of Electrical and

More information

EDFA-WDM Optical Network Design System

EDFA-WDM Optical Network Design System Available online at www.sciencedirect.com Procedia Engineering 53 ( 2013 ) 294 302 Malaysian Technical Universities Conference on Engineering & Technology 2012, MUCET 2012 Part -1 Electronic and Electrical

More information

Optical simulations for experimental networks: lessons from MONET

Optical simulations for experimental networks: lessons from MONET Optical simulations for experimental networks: lessons from MONET D. Richards, J. Jackel, M. Goodman, I. Roudas, * R. Wagner*, and N. Antoniades* Telcordia Technologies, Red Bank NJ 07701 ABSTRACT We have

More information

PERFORMANCE EVALUATION OF GB/S BIDIRECTIONAL DWDM PASSIVE OPTICAL NETWORK BASED ON CYCLIC AWG

PERFORMANCE EVALUATION OF GB/S BIDIRECTIONAL DWDM PASSIVE OPTICAL NETWORK BASED ON CYCLIC AWG http:// PERFORMANCE EVALUATION OF 1.25 16 GB/S BIDIRECTIONAL DWDM PASSIVE OPTICAL NETWORK BASED ON CYCLIC AWG Arashdeep Kaur 1, Ramandeep Kaur 2 1 Student, M.Tech, Department of Electronics and Communication

More information

WDM. Coarse WDM. Nortel's WDM System

WDM. Coarse WDM. Nortel's WDM System WDM wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e. colors) of laser light.

More information

Polarization Mode Dispersion compensation in WDM system using dispersion compensating fibre

Polarization Mode Dispersion compensation in WDM system using dispersion compensating fibre Polarization Mode Dispersion compensation in WDM system using dispersion compensating fibre AMANDEEP KAUR (Assist. Prof.) ECE department GIMET Amritsar Abstract: In this paper, the polarization mode dispersion

More information

Module 19 : WDM Components

Module 19 : WDM Components Module 19 : WDM Components Lecture : WDM Components - I Part - I Objectives In this lecture you will learn the following WDM Components Optical Couplers Optical Amplifiers Multiplexers (MUX) Insertion

More information

All-Optical Signal Processing and Optical Regeneration

All-Optical Signal Processing and Optical Regeneration 1/36 All-Optical Signal Processing and Optical Regeneration Govind P. Agrawal Institute of Optics University of Rochester Rochester, NY 14627 c 2007 G. P. Agrawal Outline Introduction Major Nonlinear Effects

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

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

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

OBSERVATION AND MITIGATION OF POWER TRANSIENTS IN 160Gbps OPTICAL BACKHAUL NETWORKS

OBSERVATION AND MITIGATION OF POWER TRANSIENTS IN 160Gbps OPTICAL BACKHAUL NETWORKS OBSERVATION AND MITIGATION OF POWER TRANSIENTS IN 160Gbps OPTICAL BACKHAUL NETWORKS Vikrant Sharma Anurag Sharma Electronics and Communication Engineering, CT Group of Institutions, Jalandhar Dalveer Kaur

More information

! Couplers. ! Isolators/Circulators. ! Multiplexers/Filters. ! Optical Amplifiers. ! Transmitters (lasers,leds) ! Detectors (receivers) !

! Couplers. ! Isolators/Circulators. ! Multiplexers/Filters. ! Optical Amplifiers. ! Transmitters (lasers,leds) ! Detectors (receivers) ! Components of Optical Networks Based on: Rajiv Ramaswami, Kumar N. Sivarajan, Optical Networks A Practical Perspective 2 nd Edition, 2001 October, Morgan Kaufman Publishers Optical Components! Couplers!

More information

Optical Transport Technologies and Trends

Optical Transport Technologies and Trends Optical Transport Technologies and Trends A Network Planning Perspective Sept 1, 2014 Dion Leung, Director of Solutions and Sales Engineering dleung@btisystem.com About BTI Customers 380+ worldwide in

More information

Temporal phase mask encrypted optical steganography carried by amplified spontaneous emission noise

Temporal phase mask encrypted optical steganography carried by amplified spontaneous emission noise Temporal phase mask encrypted optical steganography carried by amplified spontaneous emission noise Ben Wu, * Zhenxing Wang, Bhavin J. Shastri, Matthew P. Chang, Nicholas A. Frost, and Paul R. Prucnal

More information

A HIGH SPEED WDM PON FOR DOWNSTREAM DPSK ASK SIGNALS AND UPSTREAM OOK SIGNAL WITH BROADCAST CAPABILTY

A HIGH SPEED WDM PON FOR DOWNSTREAM DPSK ASK SIGNALS AND UPSTREAM OOK SIGNAL WITH BROADCAST CAPABILTY A HIGH SPEED WDM PON FOR DOWNSTREAM DPSK ASK SIGNALS AND UPSTREAM OOK SIGNAL WITH BROADCAST CAPABILTY 1 AAMIR KHAN, 2 ANITA CHOPRA 1 Department of Information Technology, Suresh Gyan Vihar University,

More information

Bit error rate and cross talk performance in optical cross connect with wavelength converter

Bit error rate and cross talk performance in optical cross connect with wavelength converter Vol. 6, No. 3 / March 2007 / JOURNAL OF OPTICAL NETWORKING 295 Bit error rate and cross talk performance in optical cross connect with wavelength converter M. S. Islam and S. P. Majumder Department of

More information

OBSERVATION AND EVALUATION OF POWER TRANSIENTS IN 45 CHANNEL SSDWDM OPTICAL NETWORK

OBSERVATION AND EVALUATION OF POWER TRANSIENTS IN 45 CHANNEL SSDWDM OPTICAL NETWORK OBSERVATION AND EVALUATION OF POWER TRANSIENTS IN 45 CHANNEL SSDWDM OPTICAL NETWORK Vikrant Sharma, Dalveer Kaur 1,2 Department of ECE,IKG PTU, Jalandhar, India Abstract: Erbium doped fiber amplifiers

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

Progress In Electromagnetics Research C, Vol. 15, 37 48, 2010 TEMPERATURE INSENSITIVE BROAD AND FLAT GAIN C-BAND EDFA BASED ON MACRO-BENDING

Progress In Electromagnetics Research C, Vol. 15, 37 48, 2010 TEMPERATURE INSENSITIVE BROAD AND FLAT GAIN C-BAND EDFA BASED ON MACRO-BENDING Progress In Electromagnetics Research C, Vol. 15, 37 48, 2010 TEMPERATURE INSENSITIVE BROAD AND FLAT GAIN C-BAND EDFA BASED ON MACRO-BENDING P. Hajireza Optical Fiber Devices Group Multimedia University

More information

Performance Evaluation of Hybrid (Raman+EDFA) Optical Amplifiers in Dense Wavelength Division Multiplexed Optical Transmission System

Performance Evaluation of Hybrid (Raman+EDFA) Optical Amplifiers in Dense Wavelength Division Multiplexed Optical Transmission System Performance Evaluation of Hybrid (Raman+EDFA) Optical Amplifiers in Dense Wavelength Division Multiplexed Optical Transmission System Gagandeep Singh Walia 1, Kulwinder Singh 2, Manjit Singh Bhamrah 3

More information

Rogério Nogueira Instituto de Telecomunicações Pólo de Aveiro Departamento de Física Universidade de Aveiro

Rogério Nogueira Instituto de Telecomunicações Pólo de Aveiro Departamento de Física Universidade de Aveiro Fiber Bragg Gratings for DWDM Optical Networks Rogério Nogueira Instituto de Telecomunicações Pólo de Aveiro Departamento de Física Universidade de Aveiro Overview Introduction. Fabrication. Physical properties.

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

Investigation of Performance Analysis of EDFA Amplifier. Using Different Pump Wavelengths and Powers

Investigation of Performance Analysis of EDFA Amplifier. Using Different Pump Wavelengths and Powers Investigation of Performance Analysis of EDFA Amplifier Using Different Pump Wavelengths and Powers Ramandeep Kaur, Parkirti, Rajandeep Singh ABSTRACT In this paper, an investigation of the performance

More information

Compact Optical Fiber Amplifiers with Fast AGC or for Analog Signal Transmission

Compact Optical Fiber Amplifiers with Fast AGC or for Analog Signal Transmission Compact Optical Fiber Amplifiers with Fast AGC or for Analog Signal Transmission by Mikiya Suzuki *, Toshiharu Izumikawa *, Katsuhiko Iwashita * 2, Kazutaka Shimoosako * 2, Shinichi Takashima * 3, Toru

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

Photonics and Optical Communication Spring 2005

Photonics and Optical Communication Spring 2005 Photonics and Optical Communication Spring 2005 Final Exam Instructor: Dr. Dietmar Knipp, Assistant Professor of Electrical Engineering Name: Mat. -Nr.: Guidelines: Duration of the Final Exam: 2 hour You

More information

DESIGN AND CHARACTERIZATION OF HIGH PERFORMANCE C AND L BAND ERBIUM DOPED FIBER AMPLIFIERS (C,L-EDFAs)

DESIGN AND CHARACTERIZATION OF HIGH PERFORMANCE C AND L BAND ERBIUM DOPED FIBER AMPLIFIERS (C,L-EDFAs) DESIGN AND CHARACTERIZATION OF HIGH PERFORMANCE C AND L BAND ERBIUM DOPED FIBER AMPLIFIERS (C,L-EDFAs) Ahmet Altuncu Arif Başgümüş Burçin Uzunca Ekim Haznedaroğlu e-mail: altuncu@dumlupinar.edu.tr e-mail:

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

Photonics and Optical Communication

Photonics and Optical Communication Photonics and Optical Communication (Course Number 300352) Spring 2007 Dr. Dietmar Knipp Assistant Professor of Electrical Engineering http://www.faculty.iu-bremen.de/dknipp/ 1 Photonics and Optical Communication

More information

Development of Etalon-Type Gain-Flattening Filter

Development of Etalon-Type Gain-Flattening Filter Development of Etalon-Type Gain-Flattening Filter by Kazuyou Mizuno *, Yasuhiro Nishi *, You Mimura *, Yoshitaka Iida *, Hiroshi Matsuura *, Daeyoul Yoon *, Osamu Aso *, Toshiro Yamamoto *2, Tomoaki Toratani

More information

Amplitude independent RF instantaneous frequency measurement system using photonic Hilbert transform

Amplitude independent RF instantaneous frequency measurement system using photonic Hilbert transform Amplitude independent RF instantaneous frequency measurement system using photonic Hilbert transform H. Emami, N. Sarkhosh, L. A. Bui, and A. Mitchell Microelectronics and Material Technology Center School

More information

Wavelength Division Multiplexing Passive Optical Network (WDM-PON) technologies for future access networks

Wavelength Division Multiplexing Passive Optical Network (WDM-PON) technologies for future access networks JOURNAL OF ENGINEERING RESEARCH AND TECHNOLOGY, VOLUME 2, ISSUE 1, MARCH 2015 Wavelength Division Multiplexing Passive Optical Network (WDM-PON) technologies for future access networks Fady I. El-Nahal

More information

Performance Analysis of 4-Channel WDM System with and without EDFA

Performance Analysis of 4-Channel WDM System with and without EDFA Performance Analysis of 4-Channel WDM System with and without EDFA 1 Jyoti Gujral, 2 Maninder Singh 1,2 Indo Global College of Engineering, Abhipur, Mohali, Punjab, India Abstract The Scope of this paper

More information

Stabilisation of Linear-cavity Fibre Laser Using a Saturable Absorber

Stabilisation of Linear-cavity Fibre Laser Using a Saturable Absorber Edith Cowan University Research Online ECU Publications 2011 2011 Stabilisation of Linear-cavity Fibre Laser Using a Saturable Absorber David Michel Edith Cowan University Feng Xiao Edith Cowan University

More information

Transient Control of EDFA using Recirculating loop for WDM Transmisstion System.

Transient Control of EDFA using Recirculating loop for WDM Transmisstion System. Transient Control of EDFA usg Recirculatg loop for WDM Transmisstion System. Soo-J Bae *a, Chang-Hee Lee b a Korea Electrotechnology Research Institute, Gyeonggi-TP, 1271-11, Sa-1dong, Ansan, Gyeonggi

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

CSO/CTB PERFORMANCE IMPROVEMENT BY USING FABRY-PEROT ETALON AT THE RECEIVING SITE

CSO/CTB PERFORMANCE IMPROVEMENT BY USING FABRY-PEROT ETALON AT THE RECEIVING SITE Progress In Electromagnetics Research Letters, Vol. 6, 107 113, 2009 CSO/CTB PERFORMANCE IMPROVEMENT BY USING FABRY-PEROT ETALON AT THE RECEIVING SITE S.-J. Tzeng, H.-H. Lu, C.-Y. Li, K.-H. Chang,and C.-H.

More information

Basic Optical Components

Basic Optical Components Basic Optical Components Jorge M. Finochietto Córdoba 2012 LCD EFN UNC Laboratorio de Comunicaciones Digitales Facultad de Ciencias Exactas, Físicas y Naturales Universidad Nacional de Córdoba, Argentina

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

Optical Add-Drop Multiplexer Based on Fiber Bragg Gratings for Dense Wavelength Division Multiplexing Networks

Optical Add-Drop Multiplexer Based on Fiber Bragg Gratings for Dense Wavelength Division Multiplexing Networks Optical Add-Drop Multiplexer Based on Fiber Bragg Gratings for Dense Wavelength Division Multiplexing Networks P. S. André 1, 2, A. Nolasco Pinto 1, 3, J. L. Pinto 1, 2, T. Almeida 1, 4 and M. Pousa 1,4

More information

Supplementary Figures

Supplementary Figures Supplementary Figures Supplementary Figure 1: Mach-Zehnder interferometer (MZI) phase stabilization. (a) DC output of the MZI with and without phase stabilization. (b) Performance of MZI stabilization

More information

Enhanced 10 Gb/s operations of directly modulated reflective semiconductor optical amplifiers without electronic equalization

Enhanced 10 Gb/s operations of directly modulated reflective semiconductor optical amplifiers without electronic equalization Enhanced Gb/s operations of directly modulated reflective semiconductor optical amplifiers without electronic equalization M. Presi, 1, A. Chiuchiarelli, 1 R. Corsini, 1 P. Choudury, 1 F. Bottoni, 1, L.

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

Fiber-based components. by: Khanh Kieu

Fiber-based components. by: Khanh Kieu Fiber-based components by: Khanh Kieu Projects 1. Handling optical fibers, numerical aperture 2. Measurement of fiber attenuation 3. Connectors and splices 4. Free space coupling of laser into fibers 5.

More information

Analyzing the Non-Linear Effects in DWDM Optical Network Using MDRZ Modulation Format

Analyzing the Non-Linear Effects in DWDM Optical Network Using MDRZ Modulation Format Analyzing the Non-Linear Effects in DWDM Optical Network Using MDRZ Modulation Format Ami R. Lavingia Electronics & Communication Dept. SAL Institute of Technology & Engineering Research Gujarat Technological

More information

Analysis of Gain and NF using Raman and hybrid RFA-EDFA

Analysis of Gain and NF using Raman and hybrid RFA-EDFA Analysis of Gain and NF using Raman and hybrid RFA-EDFA Abdallah M. Hassan 1, Ashraf Aboshosha 2, Mohamed B. El_Mashade 3 Electrical Engineering Dept., Faculty of Engineering, Al-Azhar University, Nasr

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

Power Transients in Hybrid Optical Amplifier (EDFA + DFRA) Cascades

Power Transients in Hybrid Optical Amplifier (EDFA + DFRA) Cascades Power Transients in Hybrid Optical Amplifier (EDFA + DFRA) Cascades Bárbara Dumas and Ricardo Olivares Electronic Engineering Department Universidad Técnica Federico Santa María Valparaíso, Chile bpilar.dumas@gmail.com,

More information

WDM-PON Delivering 5-Gbps Downstream/2.5-Gbps Upstream Data

WDM-PON Delivering 5-Gbps Downstream/2.5-Gbps Upstream Data WDM-PON Delivering 5-Gbps Downstream/2.5-Gbps Upstream Data Balaji Raobawale P. G. Department M.B.E.S. College of Engineering, Ambajogai, India S. K. Sudhansu P. G. Department M.B.E.S. College of Engineering,

More information

Eye-Diagram-Based Evaluation of RZ and NRZ Modulation Methods in a 10-Gb/s Single-Channel and a 160-Gb/s WDM Optical Networks

Eye-Diagram-Based Evaluation of RZ and NRZ Modulation Methods in a 10-Gb/s Single-Channel and a 160-Gb/s WDM Optical Networks International Journal of Optics and Applications 2017, 7(2): 31-36 DOI: 10.5923/j.optics.20170702.01 Eye-Diagram-Based Evaluation of RZ and NRZ Modulation Methods in a 10-Gb/s Single-Channel and a 160-Gb/s

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

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating N. A. Idris 1,2,*, N. A. M. Ahmad Hambali 1,2, M.H.A. Wahid 1,2, N. A. Ariffin 1,2,

More information

Erbium-Doper Fiber Amplifiers

Erbium-Doper Fiber Amplifiers Seminar presentation Erbium-Doper Fiber Amplifiers 27.11.2009 Ville Pale Presentation Outline History of EDFA EDFA operating principle Stimulated Emission Stark Splitting Gain Gain flatness Gain Saturation

More information

The Reduction of FWM effects using Duobinary Modulation in a Two-Channel D-WDM System

The Reduction of FWM effects using Duobinary Modulation in a Two-Channel D-WDM System The Reduction of FWM effects using Duobinary Modulation in a Two-Channel D-WDM System Laxman Tawade 1, Balasaheb Deokate 2 Department of Electronic and Telecommunication Vidya Pratishthan s College of

More information

Optical Fiber Amplifiers. Scott Freese. Physics May 2008

Optical Fiber Amplifiers. Scott Freese. Physics May 2008 Optical Fiber Amplifiers Scott Freese Physics 262 2 May 2008 Partner: Jared Maxson Abstract The primary goal of this experiment was to gain an understanding of the basic components of an Erbium doped fiber

More information

Diminution of ASE Noise in Erbium Doped Fiber Amplifiers with Fabry Perot CW Laser Source in Single Pumping Technique

Diminution of ASE Noise in Erbium Doped Fiber Amplifiers with Fabry Perot CW Laser Source in Single Pumping Technique Original Article Diminution of ASE Noise in Erbium Doped Fiber Amplifiers with Fabry Perot CW Laser Source in Single Pumping Technique S. Semmalar* 1 and S. Malarkkan 2 1 Research Scholar, SCSVMV University,

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

Suppression of Four Wave Mixing Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals in WDM System

Suppression of Four Wave Mixing Based on the Pairing Combinations of Differently Linear-Polarized Optical Signals in WDM System The Quarterly Journal of Optoelectronical Nanostructures Islamic Azad University Spring 2016 / Vol. 1, No.1 Suppression of Four Wave Mixing Based on the Pairing Combinations of Differently Linear-Polarized

More information

Impact of Double Cavity Fabry-Perot Demultiplexers on the Performance of. Dispersion Supported Transmission of Three 10 Gbit/s

Impact of Double Cavity Fabry-Perot Demultiplexers on the Performance of. Dispersion Supported Transmission of Three 10 Gbit/s Impact of Double Cavity Fabry-Perot Demultiplexers on the Performance of Dispersion Supported Transmission of Three 10 Gbit/s WDM Channels Separated 1 nm Mário M. Freire and José A. R. Pacheco de Carvalho

More information

ESTIMATION OF NOISE FIGURE USING GFF WITH HYBRID QUAD PUMPING

ESTIMATION OF NOISE FIGURE USING GFF WITH HYBRID QUAD PUMPING IJCRR Vol 05 issue 13 Section: Technology Category: Research Received on: 19/12/12 Revised on: 16/01/13 Accepted on: 09/02/13 ESTIMATION OF NOISE FIGURE USING GFF WITH HYBRID QUAD PUMPING V.R. Prakash,

More information

Bragg and fiber gratings. Mikko Saarinen

Bragg and fiber gratings. Mikko Saarinen Bragg and fiber gratings Mikko Saarinen 27.10.2009 Bragg grating - Bragg gratings are periodic perturbations in the propagating medium, usually periodic variation of the refractive index - like diffraction

More information

Gain characteristics of a 210 km hybrid Raman/erbium-doped fiber amplified loop

Gain characteristics of a 210 km hybrid Raman/erbium-doped fiber amplified loop Optics Communications 261 (2006) 152 157 www.elsevier.com/locate/optcom Gain characteristics of a 210 km hybrid Raman/erbium-doped fiber amplified loop Gaston E. Tudury a,b, Jonathan Hu b, *, Brian S.

More information

Wideband Rare-earth-doped Fiber Amplification Technologies Gain Bandwidth Expansion in the C and L bands

Wideband Rare-earth-doped Fiber Amplification Technologies Gain Bandwidth Expansion in the C and L bands Wideband Rare-earth-doped Fiber Amplification Technologies Gain Bandwidth Expansion in the C and L bands Tadashi Sakamoto, Atsushi Mori, Hiroji Masuda, and Hirotaka Ono Abstract We are expanding the gain

More information

RXT-1200 Modular Test Platform

RXT-1200 Modular Test Platform CWDM and DWDM Testing RXT-1200 Modular Test Platform Optical Spectrum/Channel Analyzer for CWDM and DWDM Networks Using superior micro-optic design and MEMS tuning technology, the RXT-4500 OSA module measures

More information

Spectral hole burning effects initiated by uniform signal intensities in a gain-flattened EDFA

Spectral hole burning effects initiated by uniform signal intensities in a gain-flattened EDFA February 10, 2011 / Vol. 9, No. 2 / CHINESE OPTICS LETTERS 020603-1 Spectral hole burning effects initiated by uniform signal intensities in a gain-flattened EDFA A. R. Sarmani 1, S-J Sheih 2, F. R. Mahamd

More information

Contents for this Presentation. Multi-Service Transport

Contents for this Presentation. Multi-Service Transport Contents for this Presentation SDH/DWDM based Multi-Service Transport Platform by Khurram Shahzad ad Brief Contents Description for this of Presentation the Project Development of a Unified Transport Platform

More information

32-Channel DWDM System Design and Simulation by Using EDFA with DCF and Raman Amplifiers

32-Channel DWDM System Design and Simulation by Using EDFA with DCF and Raman Amplifiers 2012 International Conference on Information and Computer Networks (ICICN 2012) IPCSIT vol. 27 (2012) (2012) IACSIT Press, Singapore 32-Channel DWDM System Design and Simulation by Using EDFA with DCF

More information

DWDM millimeter-wave radio-on-fiber systems

DWDM millimeter-wave radio-on-fiber systems DWDM millimeter-wave radio-on-fiber systems Hiroyuki Toda a, Toshiaki Kuri b, and Ken-ichi Kitayama c a Faculty of Engineering, Doshisha University, Kyotanabe, Kyoto, Japan 610-0321; b National Institute

More information

MICROWAVE photonics is an interdisciplinary area

MICROWAVE photonics is an interdisciplinary area 314 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 27, NO. 3, FEBRUARY 1, 2009 Microwave Photonics Jianping Yao, Senior Member, IEEE, Member, OSA (Invited Tutorial) Abstract Broadband and low loss capability of

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

EDFA SIMULINK MODEL FOR ANALYZING GAIN SPECTRUM AND ASE. Stephen Z. Pinter

EDFA SIMULINK MODEL FOR ANALYZING GAIN SPECTRUM AND ASE. Stephen Z. Pinter EDFA SIMULINK MODEL FOR ANALYZING GAIN SPECTRUM AND ASE Stephen Z. Pinter Ryerson University Department of Electrical and Computer Engineering spinter@ee.ryerson.ca December, 2003 ABSTRACT A Simulink model

More information

LABORATORY INSTRUCTION NOTES ERBIUM-DOPED FIBER AMPLIFIER

LABORATORY INSTRUCTION NOTES ERBIUM-DOPED FIBER AMPLIFIER ECE1640H Advanced Labs for Special Topics in Photonics LABORATORY INSTRUCTION NOTES ERBIUM-DOPED FIBER AMPLIFIER Fictitious moving pill box in a fiber amplifier Faculty of Applied Science and Engineering

More information

Frequency Noise Reduction of Integrated Laser Source with On-Chip Optical Feedback

Frequency Noise Reduction of Integrated Laser Source with On-Chip Optical Feedback MITSUBISHI ELECTRIC RESEARCH LABORATORIES http://www.merl.com Frequency Noise Reduction of Integrated Laser Source with On-Chip Optical Feedback Song, B.; Kojima, K.; Pina, S.; Koike-Akino, T.; Wang, B.;

More information

Performance Investigation of RAMAN-EDFA HOA for DWDM System (Received 17 September, 2016 Accepted 02 October, 2016)

Performance Investigation of RAMAN-EDFA HOA for DWDM System (Received 17 September, 2016 Accepted 02 October, 2016) Performance Investigation of RAMAN-EDFA HOA for DWDM System (Received 17 September, 2016 Accepted 02 October, 2016) ABSTRACT Neha Thakral Research Scholar, DAVIET, Jalandhar nthakral9@gmail.com Earlier

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

FWM Suppression in WDM Systems Using Advanced Modulation Formats

FWM Suppression in WDM Systems Using Advanced Modulation Formats FWM Suppression in WDM Systems Using Advanced Modulation Formats M.M. Ibrahim (eng.mohamed.ibrahim@gmail.com) and Moustafa H. Aly (drmosaly@gmail.com) OSA Member Arab Academy for Science, Technology and

More information

Photonic Microwave Filter Employing an Opto- VLSI-Based Adaptive Optical Combiner

Photonic Microwave Filter Employing an Opto- VLSI-Based Adaptive Optical Combiner Research Online ECU Publications 211 211 Photonic Microwave Filter Employing an Opto- VLSI-Based Adaptive Optical Combiner Haithem Mustafa Feng Xiao Kamal Alameh 1.119/HONET.211.6149818 This article was

More information

IJISET - International Journal of Innovative Science, Engineering & Technology, Vol. 1 Issue 10, December

IJISET - International Journal of Innovative Science, Engineering & Technology, Vol. 1 Issue 10, December Reduction using Cascade Connections of Multiplexer/Demultiplexer with different s (8&16) Spacing Based Array Waveguide Grating in Dense Wavelength Division Multiplexing Salah Elrofai 1 and Abdeen Abdelkareem

More information

Time and Frequency Transfer and Dissemination Methods Using Optical Fiber Network

Time and Frequency Transfer and Dissemination Methods Using Optical Fiber Network Time and Transfer and Dissemination Methods Using Fiber Network Masaki Amemiya, Michito Imae, Yasuhisa Fujii, Tomonari Suzuyama, and Shin-ichi Ohshima Measurement Systems Section, National Metrology Institute

More information

Measuring Photonic, Optoelectronic and Electro optic S parameters using an advanced photonic module

Measuring Photonic, Optoelectronic and Electro optic S parameters using an advanced photonic module Measuring Photonic, Optoelectronic and Electro optic S parameters using an advanced photonic module APPLICATION NOTE This application note describes the procedure for electro-optic measurements of both

More information

Mitigation of Chromatic Dispersion using Different Compensation Methods in Optical Fiber Communication: A Review

Mitigation of Chromatic Dispersion using Different Compensation Methods in Optical Fiber Communication: A Review Volume-4, Issue-3, June-2014, ISSN No.: 2250-0758 International Journal of Engineering and Management Research Available at: www.ijemr.net Page Number: 21-25 Mitigation of Chromatic Dispersion using Different

More information

Evolution from TDM-PONs to Next-Generation PONs

Evolution from TDM-PONs to Next-Generation PONs Evolution from TDM-PONs to Next-Generation PONs Ki-Man Choi, Jong-Hoon Lee, and Chang-Hee Lee Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology,

More information

Multi-format receiver for non-return-to-zero binary-phase-shift-keyed and non-return-to-zero amplitude-shit-keyed signals

Multi-format receiver for non-return-to-zero binary-phase-shift-keyed and non-return-to-zero amplitude-shit-keyed signals Multi-format receiver for non-return-to-zero binary-phase-shift-keyed and non-return-to-zero amplitude-shit-keyed signals Zhixin Liu, Shilin Xiao *, Lei Cai, and Zheng Liang State Key Laboratory of Advanced

More information

Differential measurement scheme for Brillouin Optical Correlation Domain Analysis

Differential measurement scheme for Brillouin Optical Correlation Domain Analysis Differential measurement scheme for Brillouin Optical Correlation Domain Analysis Ji Ho Jeong, 1,2 Kwanil Lee, 1,4 Kwang Yong Song, 3,* Je-Myung Jeong, 2 and Sang Bae Lee 1 1 Center for Opto-Electronic

More information

Optical communications

Optical communications Optical communications Components and enabling technologies Optical networking Evolution of optical networking: road map SDH = Synchronous Digital Hierarchy SONET = Synchronous Optical Network SDH SONET

More information

WaveReady Multi-Degree Reconfigurable Optical Add/Drop Multiplexer WRS-05AD1C00B

WaveReady Multi-Degree Reconfigurable Optical Add/Drop Multiplexer WRS-05AD1C00B WaveReady Multi-Degree Reconfigurable Optical Add/Drop Multiplexer WRS-05AD1C00B www.lumentum.com Data Sheet The flexible, powerful WaveReady Reconfigurable Optical Add/Drop Multiplexer (ROADM) node wavelength

More information

Introduction and concepts Types of devices

Introduction and concepts Types of devices ECE 6323 Introduction and concepts Types of devices Passive splitters, combiners, couplers Wavelength-based devices for DWDM Modulator/demodulator (amplitude and phase), compensator (dispersion) Others:

More information

International Journal of Emerging Technologies in Computational and Applied Sciences(IJETCAS)

International Journal of Emerging Technologies in Computational and Applied Sciences(IJETCAS) International Association of Scientific Innovation and Research (IASIR) (An Association Unifying the Sciences, Engineering, and Applied Research) International Journal of Emerging Technologies in Computational

More information

Electronic equalization for enabling communications at OC-192 rates using OC-48 components

Electronic equalization for enabling communications at OC-192 rates using OC-48 components Electronic equalization for enabling communications at OC-192 rates using OC-48 components G. S. Kanter, A. K. Samal, O. Coskun and A. Gandhi Santel Networks, 39899 Balentine Drive, Suite 350, Newark,

More information

A NOVEL SCHEME FOR OPTICAL MILLIMETER WAVE GENERATION USING MZM

A NOVEL SCHEME FOR OPTICAL MILLIMETER WAVE GENERATION USING MZM A NOVEL SCHEME FOR OPTICAL MILLIMETER WAVE GENERATION USING MZM Poomari S. and Arvind Chakrapani Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore, Tamil

More information

Performance Evaluation of Different Hybrid Optical Amplifiers for 64 10, and Gbps DWDM transmission system

Performance Evaluation of Different Hybrid Optical Amplifiers for 64 10, and Gbps DWDM transmission system Performance Evaluation of Different Hybrid Optical Amplifiers for 64 10, 96 10 and 128 10 Gbps DWDM transmission system Rashmi a, Anurag Sharma b, Vikrant Sharma c a Deptt. of Electronics & Communication

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

Current Trends in Unrepeatered Systems

Current Trends in Unrepeatered Systems Current Trends in Unrepeatered Systems Wayne Pelouch (Xtera, Inc.) Email: wayne.pelouch@xtera.com Xtera, Inc. 500 W. Bethany Drive, suite 100, Allen, TX 75013, USA. Abstract: The current trends in unrepeatered

More information

Single channel and WDM transmission of 28 Gbaud zero-guard-interval CO-OFDM

Single channel and WDM transmission of 28 Gbaud zero-guard-interval CO-OFDM Single channel and WDM transmission of 28 Gbaud zero-guard-interval CO-OFDM Qunbi Zhuge, * Mohamed Morsy-Osman, Mohammad E. Mousa-Pasandi, Xian Xu, Mathieu Chagnon, Ziad A. El-Sahn, Chen Chen, and David

More information

Spectral-Efficient 100G Parallel PHY in Metro/regional Networks

Spectral-Efficient 100G Parallel PHY in Metro/regional Networks Spectral-Efficient 100G Parallel PHY in Metro/regional Networks IEEE 802.3 HSSG January 2007 Winston I. Way wway@opvista.com OUTLINE Why spectral efficient DWDM for 100G? DWDM spectral efficiency advancement

More information