Slow, Fast, and Backwards Light: Fundamental Aspects
|
|
- Amos Randall
- 5 years ago
- Views:
Transcription
1 Slow, Fast, and Backwards Light: Fundamental Aspects Robert W. Boyd University of Rochester Paul Narum Norwegian Defence Research Establishment with George Gehring, Giovanni Piredda, Aaron Schweinsberg, Katie Schwertz, Zhimin Shi, Heedeuk Shin, Joseph Vornehm, Petros Zerom. Presented at PQE, January 6, 2007.
2 Interest in Slow Light Intrigue: Can (group) refractive index really be 10 6? Fundamentals of optical physics Optical delay lines, optical storage, optical memories Implications for quantum information What about fast light (v > c) and backwards light (v negative)? Boyd and Gauthier, Slow and Fast Light, in Progress in Optics, 43, 2002.
3 Slow Light and Optical Buffers All-Optical Switch input ports switch output ports Use Optical Buffering to Resolve Data-Packet Contention slow-light medium But what happens if two data packets arrive simultaneously? Controllable slow light for optical buffering can dramatically increase system performance. Daniel Blumenthal, UC Santa Barbara; Alexander Gaeta, Cornell University; Daniel Gauthier, Duke University; Alan Willner, University of Southern California; Robert Boyd, John Howell, University of Rochester
4 Slow and Fast Light and Optical Resonances Pulses propagate at the group velocity given by v g = c n g n g = n + dn d Want large dispersion to obtain extreme group velocities Sharp spectral features produce large dispersion. The group index can be large and positive (slow light). positive and much less than unity (fast light) or negative (backwards light).
5 How to Create Slow and Fast Light I Use Isolated Gain or Absorption Resonance α absorption resonance g gain resonance 0 0 n n ng slow light ng slow light fast light fast light
6 How to Create Slow and Fast Light II Use Dip in Gain or Absorption Feature g n dip in gain feature 0 0 α n dip in absorption feature ng slow light ng slow light fast light fast light Narrow dips in gain and absorption lines can be created by various nonlinear optical effects, such as electromagnetically induced transparency (EIT), coherent population oscillations (CPO), and conventional saturation.
7 How to Create Slow and Fast Light III Dispersion Management gain coefficient g () double gain line single gain line flattened gain profile contributions to double gain line (n 1) 0 extended region of linear dependence single gain line double gain line frequency ( 0 )/γ M. D. Stenner, M. A. Neifeld, Z. Zhu, A. M. C. Dawes, and D. J. Gauthier, Optics Express 13, 9995 (2005).
8 Numerical Modeling of Pulse Propagation through Slow and Fast-Light Media Numerically integrate the reduced wave equation A z 1 v g A t = 0 and plot A(z,t) versus distance z. Assume an input pulse with a Gaussian temporal profile. Study three cases: Slow light v g = 0.5 c Fast light v g = 5 c and v g = -2 c CAUTION: This is a very simplistic model. It ignores GVD and spectral reshaping.
9 Pulse Propagation through a Slow-Light Medium (n g = 2, v g = 0.5 c)
10 Pulse Propagation through a Fast-Light Medium (n g =.2, v g = 5 c)
11 Pulse Propagation through a Fast-Light Medium (n g = -.5, v g = -2 c)
12 Slow and Fast Light in an Erbium Doped Fiber Amplifier Fiber geometry allows long propagation length Saturable gain or loss possible depending on pump intensity Output Advance = 0.32 ms Input FWHM = 1.8 ms 0.15 Time 6 ms Fractional Advancement mw mw mw mw mw - 0 mw out in Modulation Frequency (Hz) Schweinsberg, Lepeshkin, Bigelow, Boyd, and Jarabo, Europhysics Letters, 73, 218 (2006).
13 Observation of Backward Pulse Propagation in an Erbium-Doped-Fiber Optical Amplifier 1550 nm laser ISO 980 nm laser or 80/20 coupler Ref WDM EDF Signal WDM We time-resolve the propagation of the pulse as a function of position along the erbiumdoped fiber. Procedure cutback method couplers embedded in fiber normalized intensity out in G. M. Gehring, A. Schweinsberg, C. Barsi, N. Kostinski, R. W. Boyd, Science 312, time (ms)
14 Experimental Results: Backward Propagation in Erbium-Doped Fiber Normalized: (Amplification removed numerically)
15 Experimental Results: Backward Propagation in Erbium-Doped Fiber Un-Normalized
16 Observation of Backward Pulse Propagation in an Erbium-Doped-Fiber Optical Amplifier Δt= ms pulse amplitude (arb units) 0.06 ms 0.08 ms 0.12 ms 0.14 ms normalized distance n g z (m)
17 Observation of Backward Pulse Propagation in an Erbium-Doped-Fiber Optical Amplifier Summary: Backwards propagation is a realizable physical effect. (Of course, many other workers have measured negative time delays. Our contribution was to measure the pulse evolution within the material medium.)
18 Fundamental Limits on Slow and Fast Light Slow Light: There appear to be no fundamental limits on how much one can delay a pulse of light (although there are very serious practical problems).* Fast Light: But there do seem to be essentially fundamental limits to how much one can advance a pulse of light. Why are the two cases so different?** * Boyd, Gauthier, Gaeta, and Willner, PRA 2005 ** We cannot get around this problem simply by invoking causality, first because we are dealing with group velocity (not information velocity), and second because the relevant equations superficially appear to be symmetric between the slow- and fast-light cases.
19 Why is there no limit to the amount of pulse delay? At the bottom of the dip in the absorpton, the absorption can in principle be made to vanish. There is then no limit on how long a propagation distance can be used. This trick works only for slow light. α n ng dip in absorption feature 0 infinite propagation distance slow light fast light
20 Why can one delay (but not advance) a pulse by an arbitrarily large amount? Two crucial differences between slow and fast light (1) First, note that we cannot use gains greater than approximately exp(16) at any frequency to avoid ASE. And we cannot have absorption larger than T = exp(-16) at the signal frequency, so signal can be measured. (Of course, the argument does not hinge on the value 16.) When examined quantitatively, these constraints impose a limit of at most two pulse-widths of delay or advancement. One can overcome these constraints by using a deep hole in an absorption feature, but this trick works only for slow light, as we have just seen. (2) Spectral reshaping of the pulse is the dominant competing effect in most slow/fast light systems. This also behaves differently for slow and fast-light systems, as we shall now see.
21 Influence of Spectral Reshaping (Line-Center Operation, Dip in Gain or Absorption Feature) input pulse output pulse slow-light output pulse fast-light T( ) G( ) for still longer propagation distances, the pulse breaks up spectrally and temporally spectrally narrowed pulse spectrally broadened pulse double-humped pulse
22 Numerical Results: Propagation through a Linear Dispersive Medium Fast light: single Lorentzian absorption line T = exp(-16) vary absorption line width to control advance Slow light: single Lorentzian gain line T = exp(+16) vary absorption line width to control delay Same Gaussian input pulse in all cases 1 pulse-width delay Slow Light Results 2 pulsewidth advance Fast Light Results note pulse compression and break-up 2 pulse-width delay (expanded time axis) 1 pulse-width advance vacuum propagation 4 pulse-width delay (expanded time axis) note pulse broadening time time
23 Tunable Delays of up to 80 Pulse Widths in Atomic Cesium Vapor signal optional optical pumping fields tra nsmission n x 10-3 n 0 spectrum (275 ps pulse) 0.1 v g / c v g coarse tuning: temperature signal detuning (GHz) 0 Pulse intensity Air 275 ps pulses increasing temperature fine tuning: optical pumping 275 ps pulses pump off 1.0 ns pump on time (ns) Camacho, Peck, Howell, Schweinsberg, Boyd time (ns)
24 Tunable Delays of up to 80 Pulse Widths in Atomic Cesium Vapor Comment: In EIT based slow light, spectral reshaping is the dominant limitation. But far off resonance, this effect is negligible. Group velocity dispersion becomes important. Longer input pulses lead to reduced gvd distortion and longer fractional delays Results for 740 ps pulses intensity Air x1/2 X 10 X time (ns) fractional broadening ps pulses fractional delay Camacho, Peck, Howell, Schweinsberg, Boyd
25 How to Prevent Pulse Distortion (Which Can Limit Data Rates) Two primary mechanisms for pulse distortion in EDFA Spectral broadening, leading to temporal compression CPO gain dip causes spectral components in the wings to be amplified more than central components Temporal gain recovery, leading to temporal broadening Leading edge of signal pulse saturates gain, but for long pulses, the trailing edge can experience recovered gain To minimize second effect, add a cw background to reduce the influence of gain recovery P sig For the proper choice of background power, the two effects exactly cancel! P bg
26 Minimizing Pulse Distortion Laboratory Results 980 nm laser 1550 nm laser EOM ISO splitter WDM function generator Polarizer EDF P sig Pbg WDM broadening compression Pulse width ratio (Tout / Tin) ms 5 ms 10 ms 40 ms power ratio (P bg / P sig )
27 Summary Slow-light techniques hold great promise for applications in telecommunications Good progress being made in devloping new slow-light techniques and applications Backwards and superluminal propagation are strongly counterintuitive, but are fully explained by standard physics.
28
Slow and Fast Light Propagation in Erbium-Doped Optical Fibers
Slow and Fast Light Propagation in Erbium-Doped Optical Fibers Nick N. Lepeshkin, Aaron Schweinsberg, Matthew S. Bigelow,* George M. Gehring, and Robert W. Boyd The Institute of Optics, University of Rochester,
More informationDiscretely tunable optical packet delays using channelized slow light
Discretely tunable optical packet delays using channelized slow light Zhimin Shi ( 石志敏 * and Robert W. Boyd The Institute of Optics, University of Rochester, Rochester, New York 4627, USA Received 7 September
More informationAll-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 informationObservation of superluminal and slow light propagation in erbium-doped optical fiber
EUROPHYSICS LETTERS 15 January 2006 Europhys. Lett., 73 (2), pp. 218 224 (2006) DOI: 10.1209/epl/i2005-10371-0 Observation of superluminal and slow light propagation in erbium-doped optical fiber A. Schweinsberg
More informationSelf-advanced fast light propagation in an optical fiber based on Brillouin scattering
Self-advanced fast light propagation in an optical fiber based on Brillouin scattering Sanghoon Chin, Miguel Gonzalez-Herraez 1, and Luc Thévenaz Ecole Polytechnique Fédérale de Lausanne, STI-GR-SCI Station
More informationDr. Rüdiger Paschotta RP Photonics Consulting GmbH. Competence Area: Fiber Devices
Dr. Rüdiger Paschotta RP Photonics Consulting GmbH Competence Area: Fiber Devices Topics in this Area Fiber lasers, including exotic types Fiber amplifiers, including telecom-type devices and high power
More informationStudy of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber
Study of Multiwavelength Fiber Laser in a Highly Nonlinear Fiber I. H. M. Nadzar 1 and N. A.Awang 1* 1 Faculty of Science, Technology and Human Development, Universiti Tun Hussein Onn Malaysia, Johor,
More informationAdvanced 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 informationMulti-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 informationAnomalous dispersion and negative group velocity in a coherence-free cold atomic medium
C82 J. Opt. Soc. Am. B/ Vol. 25, No. 12/ December 2008 Brown et al. Anomalous dispersion and negative group velocity in a coherence-free cold atomic medium William G. A. Brown, Russell McLean,* Andrei
More informationPropagation-induced transition from slow to fast light in highly doped erbium fibers
Propagation-induced transition from slow to fast light in highly doped erbium fibers Oscar G. Calderón,* Sonia Melle, M. A. Antón, F. Carreño, and Francisco Arrieta-Yañez Escuela Universitaria de Óptica,
More informationThe Report of Gain Performance Characteristics of the Erbium Doped Fiber Amplifier (EDFA)
The Report of Gain Performance Characteristics of the Erbium Doped Fiber Amplifier (EDFA) Masruri Masruri (186520) 22/05/2008 1 Laboratory Setup The laboratory setup using in this laboratory experiment
More informationLinear cavity erbium-doped fiber laser with over 100 nm tuning range
Linear cavity erbium-doped fiber laser with over 100 nm tuning range Xinyong Dong, Nam Quoc Ngo *, and Ping Shum Network Technology Research Center, School of Electrical & Electronics Engineering, Nanyang
More informationOPTICAL NETWORKS. Building Blocks. A. Gençata İTÜ, Dept. Computer Engineering 2005
OPTICAL NETWORKS Building Blocks A. Gençata İTÜ, Dept. Computer Engineering 2005 Introduction An introduction to WDM devices. optical fiber optical couplers optical receivers optical filters optical amplifiers
More informationIntroduction 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 informationCoupling effects of signal and pump beams in three-level saturable-gain media
Mitnick et al. Vol. 15, No. 9/September 1998/J. Opt. Soc. Am. B 2433 Coupling effects of signal and pump beams in three-level saturable-gain media Yuri Mitnick, Moshe Horowitz, and Baruch Fischer Department
More informationSlow light on Gbit/s differential-phase-shiftkeying
Slow light on Gbit/s differential-phase-shiftkeying signals Bo Zhang 1, Lianshan Yan 2, Irfan Fazal 1, Lin Zhang 1, Alan E. Willner 1, Zhaoming Zhu 3, and Daniel. J. Gauthier 3 1 Department of Electrical
More informationEDFA-WDM Optical Network Analysis
EDFA-WDM Optical Network Analysis Narruvala Lokesh, kranthi Kumar Katam,Prof. Jabeena A Vellore Institute of Technology VIT University, Vellore, India Abstract : Optical network that apply wavelength division
More informationOPTI510R: Photonics. Khanh Kieu College of Optical Sciences, University of Arizona Meinel building R.626
OPTI510R: Photonics Khanh Kieu College of Optical Sciences, University of Arizona kkieu@optics.arizona.edu Meinel building R.626 Announcements HW #5 is assigned (due April 9) April 9 th class will be in
More informationMechanism of intrinsic wavelength tuning and sideband asymmetry in a passively mode-locked soliton fiber ring laser
28 J. Opt. Soc. Am. B/Vol. 17, No. 1/January 2000 Man et al. Mechanism of intrinsic wavelength tuning and sideband asymmetry in a passively mode-locked soliton fiber ring laser W. S. Man, H. Y. Tam, and
More informationG. Norris* & G. McConnell
Relaxed damage threshold intensity conditions and nonlinear increase in the conversion efficiency of an optical parametric oscillator using a bi-directional pump geometry G. Norris* & G. McConnell Centre
More informationDEVELOPMENT OF A NEW INJECTION LOCKING RING LASER AMPLIFIER USING A COUNTER INJECTION: MULTIWAVELENGTH AMPLIFICATION
DEVELOPMENT OF A NEW INJECTION LOCKING RING LASER AMPLIFIER USING A COUNTER INJECTION: MULTAVELENGTH AMPLIFICATION Rosen Vanyuhov Peev 1, Margarita Anguelova Deneva 1, Marin Nenchev Nenchev 1,2 1 Dept.
More informationWDM Transmitter Based on Spectral Slicing of Similariton Spectrum
WDM Transmitter Based on Spectral Slicing of Similariton Spectrum Leila Graini and Kaddour Saouchi Laboratory of Study and Research in Instrumentation and Communication of Annaba (LERICA), Department of
More informationOptimization of supercontinuum generation in photonic crystal fibers for pulse compression
Optimization of supercontinuum generation in photonic crystal fibers for pulse compression Noah Chang Herbert Winful,Ted Norris Center for Ultrafast Optical Science University of Michigan What is Photonic
More informationChapter 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 informationImproved slow-light performance of 10 Gb/s NRZ, PSBT and DPSK signals in fiber broadband SBS
Improved slow-light performance of 10 Gb/s NRZ, PSBT and DPSK signals in fiber broadband SBS Lilin Yi 1, 2, Yves Jaouën 1, Weisheng Hu 2, Yikai Su 2, Sébastien Bigo 3 1 GET/Telecom Paris, CNRS UMR5141,
More informationOptical Amplifiers (Chapter 6)
Optical Amplifiers (Chapter 6) General optical amplifier theory Semiconductor Optical Amplifier (SOA) Raman Amplifiers Erbium-doped Fiber Amplifiers (EDFA) Read Chapter 6, pp. 226-266 Loss & dispersion
More informationThe Development of a High Quality and a High Peak Power Pulsed Fiber Laser With a Flexible Tunability of the Pulse Width
The Development of a High Quality and a High Peak Power Pulsed Fiber Laser With a Flexible Tunability of the Pulse Width Ryo Kawahara *1, Hiroshi Hashimoto *1, Jeffrey W. Nicholson *2, Eisuke Otani *1,
More informationFiber-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 information2-R REGENERATION EXPLOITING SELF-PHASE MODULATION IN A SEMICONDUCTOR OPTICAL AMPLIFIER
2-R REGENERATION EXPLOITING SELF-PHASE MODULATION IN A SEMICONDUCTOR OPTICAL AMPLIFIER Gianluca Meloni,^ Antonella Bogoni,^ and Luca Poti^ Scuola Superiore Sunt'Anna, P.zza dei Martin della Libertd 33,
More informationNotes on Optical Amplifiers
Notes on Optical Amplifiers Optical amplifiers typically use energy transitions such as those in atomic media or electron/hole recombination in semiconductors. In optical amplifiers that use semiconductor
More informationAvailable 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 informationOptimisation 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 informationOptical 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 informationProgress 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 informationExperimental demonstration of both inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA
Experimental demonstration of both inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA Songnian Fu, Jianji Dong *, P. Shum, and Liren Zhang (1) Network Technology
More informationOptical Communications and Networking 朱祖勍. Oct. 9, 2017
Optical Communications and Networking Oct. 9, 2017 1 Optical Amplifiers In optical communication systems, the optical signal from the transmitter are attenuated by the fiber and other passive components
More informationS-band gain-clamped grating-based erbiumdoped fiber amplifier by forward optical feedback technique
S-band gain-clamped grating-based erbiumdoped fiber amplifier by forward optical feedback technique Chien-Hung Yeh 1, *, Ming-Ching Lin 3, Ting-Tsan Huang 2, Kuei-Chu Hsu 2 Cheng-Hao Ko 2, and Sien Chi
More informationSUPPLEMENTARY INFORMATION DOI: /NPHOTON
Supplementary Methods and Data 1. Apparatus Design The time-of-flight measurement apparatus built in this study is shown in Supplementary Figure 1. An erbium-doped femtosecond fibre oscillator (C-Fiber,
More informationRole of distributed amplification in designing high-capacity soliton systems
Role of distributed amplification in designing high-capacity soliton systems Zhi M. Liao and Govind P. Agrawal The Institute of Optics, University of Rochester, Rochester, New York 1467 gpa@optics.rochester.edu
More informationYb-doped Mode-locked fiber laser based on NLPR Yan YOU
Yb-doped Mode-locked fiber laser based on NLPR 20120124 Yan YOU Mode locking method-nlpr Nonlinear polarization rotation(nlpr) : A power-dependent polarization change is converted into a power-dependent
More informationA novel 3-stage structure for a low-noise, high-gain and gain-flattened L-band erbium doped fiber amplifier *
Journal of Zhejiang University SCIENCE ISSN 9-9 http://www.zju.edu.cn/jzus E-mail: jzus@zju.edu.cn A novel -stage structure for a low-noise, high-gain and gain-flattened L-band erbium doped fiber amplifier
More informationQuasi-Light-Storage based on time-frequency coherence
Quasi-Light-Storage based on time-frequency coherence Stefan Preußler 1 *, Kambiz Jamshidi 1,2 *, Andrzej Wiatrek 1, Ronny Henker 1, Christian-Alexander Bunge 1 and Thomas Schneider 1 1 Deutsche Telekom
More informationPhase Sensitive Amplifier Based on Ultrashort Pump Pulses
Phase Sensitive Amplifier Based on Ultrashort Pump Pulses Alexander Gershikov and Gad Eisenstein Department of Electrical Engineering, Technion, Haifa, 32000, Israel. Corresponding author: alexger@campus.technion.ac.il
More informationPulse Restoration by Filtering of Self-Phase Modulation Broadened Optical Spectrum
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 20, NO. 7, JULY 2002 1113 Pulse Restoration by Filtering of Self-Phase Modulation Broadened Optical Spectrum Bengt-Erik Olsson, Member, IEEE, and Daniel J. Blumenthal,
More informationGeneration of High-order Group-velocity-locked Vector Solitons
Generation of High-order Group-velocity-locked Vector Solitons X. X. Jin, Z. C. Wu, Q. Zhang, L. Li, D. Y. Tang, D. Y. Shen, S. N. Fu, D. M. Liu, and L. M. Zhao, * Jiangsu Key Laboratory of Advanced Laser
More informationElimination of Self-Pulsations in Dual-Clad, Ytterbium-Doped Fiber Lasers
Elimination of Self-Pulsations in Dual-Clad, Ytterbium-Doped Fiber Lasers 1.0 Modulation depth 0.8 0.6 0.4 0.2 0.0 Laser 3 Laser 2 Laser 4 2 3 4 5 6 7 8 Absorbed pump power (W) Laser 1 W. Guan and J. R.
More informationEnhanced spectral compression in nonlinear optical
Enhanced spectral compression in nonlinear optical fibres Sonia Boscolo, Christophe Finot To cite this version: Sonia Boscolo, Christophe Finot. Enhanced spectral compression in nonlinear optical fibres.
More informationOptical 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 information1550 nm Programmable Picosecond Laser, PM
1550 nm Programmable Picosecond Laser, PM The Optilab is a programmable laser that produces picosecond pulses with electrical input pulses. It functions as a seed pulse generator for Master Oscillator
More informationSetup of the four-wavelength Doppler lidar system with feedback controlled pulse shaping
Setup of the four-wavelength Doppler lidar system with feedback controlled pulse shaping Albert Töws and Alfred Kurtz Cologne University of Applied Sciences Steinmüllerallee 1, 51643 Gummersbach, Germany
More informationModule 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 informationElements 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 informationInP-based Waveguide Photodetector with Integrated Photon Multiplication
InP-based Waveguide Photodetector with Integrated Photon Multiplication D.Pasquariello,J.Piprek,D.Lasaosa,andJ.E.Bowers Electrical and Computer Engineering Department University of California, Santa Barbara,
More informationDispersion 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 informationOptics Communications
Optics Communications 284 (11) 2327 2336 Contents lists available at ScienceDirect Optics Communications journal homepage: www.elsevier.com/locate/optcom Multiwavelength lasers with homogeneous gain and
More informationDBR based passively mode-locked 1.5m semiconductor laser with 9 nm tuning range Moskalenko, V.; Williams, K.A.; Bente, E.A.J.M.
DBR based passively mode-locked 1.5m semiconductor laser with 9 nm tuning range Moskalenko, V.; Williams, K.A.; Bente, E.A.J.M. Published in: Proceedings of the 20th Annual Symposium of the IEEE Photonics
More informationLasers PH 645/ OSE 645/ EE 613 Summer 2010 Section 1: T/Th 2:45-4:45 PM Engineering Building 240
Lasers PH 645/ OSE 645/ EE 613 Summer 2010 Section 1: T/Th 2:45-4:45 PM Engineering Building 240 John D. Williams, Ph.D. Department of Electrical and Computer Engineering 406 Optics Building - UAHuntsville,
More informationStudy of All-Optical Wavelength Conversion and Regeneration Subsystems for use in Wavelength Division Multiplexing (WDM) Telecommunication Networks.
Study of All-Optical Wavelength Conversion and Regeneration Subsystems for use in Wavelength Division Multiplexing (WDM) Telecommunication Networks. Hercules Simos * National and Kapodistrian University
More informationOptical 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 informationLecture 6 Fiber Optical Communication Lecture 6, Slide 1
Lecture 6 Optical transmitters Photon processes in light matter interaction Lasers Lasing conditions The rate equations CW operation Modulation response Noise Light emitting diodes (LED) Power Modulation
More informationOptical fiber-fault surveillance for passive optical networks in S-band operation window
Optical fiber-fault surveillance for passive optical networks in S-band operation window Chien-Hung Yeh 1 and Sien Chi 2,3 1 Transmission System Department, Computer and Communications Research Laboratories,
More informationANALYSIS 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 informationSignal 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 informationRADIO-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 informationExtended delay of broadband signals in stimulated Brillouin scattering slow light using synthesized pump chirp
Extended delay of broadband signals in stimulated Brillouin scattering slow light using synthesized pump chirp Avi Zadok, Avishay Eyal and Moshe Tur Faculty of Engineering, Tel-Aviv University, Tel-Aviv
More informationObservation of large 10-Gb/s SBS slow light delay with low distortion using an optimized gain profile
Observation of large 10-Gb/s SBS slow light delay with low distortion using an optimized gain profile E. Cabrera-Granado, Oscar G. Calderón, Sonia Melle and Daniel J. Gauthier Department of Physics and
More informationFirst published on: 22 February 2011 PLEASE SCROLL DOWN FOR ARTICLE
This article was downloaded by: [University of California, Irvine] On: 24 April 2011 Access details: Access Details: [subscription number 923037147] Publisher Taylor & Francis Informa Ltd Registered in
More informationPERFORMANCE 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 informationLABORATORY 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 informationEDFA WDM Optical Network using GFF
EDFA WDM Optical Network using GFF Shweta Bharti M. Tech, Digital Communication, (Govt. Women Engg. College, Ajmer), Rajasthan, India ABSTRACT This paper describes the model and simulation of EDFA WDM
More informationA new picosecond Laser pulse generation method.
PULSE GATING : A new picosecond Laser pulse generation method. Picosecond lasers can be found in many fields of applications from research to industry. These lasers are very common in bio-photonics, non-linear
More informationFundamental Optics ULTRAFAST THEORY ( ) = ( ) ( q) FUNDAMENTAL OPTICS. q q = ( A150 Ultrafast Theory
ULTRAFAST THEORY The distinguishing aspect of femtosecond laser optics design is the need to control the phase characteristic of the optical system over the requisite wide pulse bandwidth. CVI Laser Optics
More informationFiber Lasers for EUV Lithography
Fiber Lasers for EUV Lithography A. Galvanauskas, Kai Chung Hou*, Cheng Zhu CUOS, EECS Department, University of Michigan P. Amaya Arbor Photonics, Inc. * Currently with Cymer, Inc 2009 International Workshop
More informationAll optical wavelength converter based on fiber cross-phase modulation and fiber Bragg grating
All optical wavelength converter based on fiber cross-phase modulation and fiber Bragg grating Pavel Honzatko a, a Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, v.v.i.,
More informationModule 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 informationLecture 3 Fiber Optical Communication Lecture 3, Slide 1
Lecture 3 Dispersion in single-mode fibers Material dispersion Waveguide dispersion Limitations from dispersion Propagation equations Gaussian pulse broadening Bit-rate limitations Fiber losses Fiber Optical
More informationEDFA 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 informationOptical Fiber Technology. Photonic Network By Dr. M H Zaidi
Optical Fiber Technology Numerical Aperture (NA) What is numerical aperture (NA)? Numerical aperture is the measure of the light gathering ability of optical fiber The higher the NA, the larger the core
More informationFIBER OPTICS. Prof. R.K. Shevgaonkar. Department of Electrical Engineering. Indian Institute of Technology, Bombay. Lecture: 37
FIBER OPTICS Prof. R.K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay Lecture: 37 Introduction to Raman Amplifiers Fiber Optics, Prof. R.K. Shevgaonkar, Dept.
More informationR. J. Jones Optical Sciences OPTI 511L Fall 2017
R. J. Jones Optical Sciences OPTI 511L Fall 2017 Semiconductor Lasers (2 weeks) Semiconductor (diode) lasers are by far the most widely used lasers today. Their small size and properties of the light output
More informationHIGH POWER LASERS FOR 3 RD GENERATION GRAVITATIONAL WAVE DETECTORS
HIGH POWER LASERS FOR 3 RD GENERATION GRAVITATIONAL WAVE DETECTORS P. Weßels for the LZH high power laser development team Laser Zentrum Hannover, Germany 23.05.2011 OUTLINE Requirements on lasers for
More informationEDFA-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 informationOptical 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 informationThe absorption of the light may be intrinsic or extrinsic
Attenuation Fiber Attenuation Types 1- Material Absorption losses 2- Intrinsic Absorption 3- Extrinsic Absorption 4- Scattering losses (Linear and nonlinear) 5- Bending Losses (Micro & Macro) Material
More informationS Optical Networks Course Lecture 2: Essential Building Blocks
S-72.3340 Optical Networks Course Lecture 2: Essential Building Blocks Edward Mutafungwa Communications Laboratory, Helsinki University of Technology, P. O. Box 2300, FIN-02015 TKK, Finland Tel: +358 9
More informationChapter 8. Wavelength-Division Multiplexing (WDM) Part II: Amplifiers
Chapter 8 Wavelength-Division Multiplexing (WDM) Part II: Amplifiers Introduction Traditionally, when setting up an optical link, one formulates a power budget and adds repeaters when the path loss exceeds
More informationAN EFFICIENT L-BAND ERBIUM-DOPED FIBER AMPLIFIER WITH ZIRCONIA-YTTRIA-ALUMINUM CO-DOPED SILICA FIBER
Journal of Non - Oxide Glasses Vol. 10, No. 3, July - September 2018, p. 65-70 AN EFFICIENT L-BAND ERBIUM-DOPED FIBER AMPLIFIER WITH ZIRCONIA-YTTRIA-ALUMINUM CO-DOPED SILICA FIBER A. A. ALMUKHTAR a, A.
More informationTheoretical and Experimental Study of Harmonically Modelocked Fiber Lasers for Optical Communication Systems
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 18, NO. 11, NOVEMBER 2000 1565 Theoretical and Experimental Study of Harmonically Modelocked Fiber Lasers for Optical Communication Systems Moshe Horowitz, Curtis
More informationOPTICAL COMMUNICATIONS S
OPTICAL COMMUNICATIONS S-108.3110 1 Course program 1. Introduction and Optical Fibers 2. Nonlinear Effects in Optical Fibers 3. Fiber-Optic Components 4. Transmitters and Receivers 5. Fiber-Optic Measurements
More informationChirped 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 informationOptical solitons in a silicon waveguide
Optical solitons in a silicon waveguide Jidong Zhang 1, Qiang Lin 2, Giovanni Piredda 2, Robert W. Boyd 2, Govind P. Agrawal 2, and Philippe M. Fauchet 1,2 1 Department of Electrical and Computer Engineering,
More informationSIMULATION OF FIBER LOOP BUFFER MEMORY OF ALL-OPTICAL PACKET SWITCH. Mandar Naik, Yatindra Nath Singh
SIMULATION OF FIBER LOOP BUFFER MEMORY ABSTRACT OF ALL-OPTICAL PACKET SWITCH Mandar Naik, Yatindra Nath Singh Center for Laser Technology Indian Institute of Technology Kanpur - 28 16 India {mandy,ynsingh}@iitk.ac.in
More informationThis document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore.
This document is downloaded from DR-NTU, Nanyang Technological University Library, Singapore. Title 80GHz dark soliton fiber laser Author(s) Citation Song, Y. F.; Guo, J.; Zhao, L. M.; Shen, D. Y.; Tang,
More informationESTIMATION 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 informationPractical 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 informationSUPPLEMENTARY INFORMATION
Supplementary Information "Large-scale integration of wavelength-addressable all-optical memories in a photonic crystal chip" SUPPLEMENTARY INFORMATION Eiichi Kuramochi*, Kengo Nozaki, Akihiko Shinya,
More informationSlow light fiber systems in microwave photonics
Invited Paper Slow light fiber systems in microwave photonics Luc Thévenaz a *, Sang-Hoon Chin a, Perrine Berger b, Jérôme Bourderionnet b, Salvador Sales c, Juan Sancho-Dura c a Ecole Polytechnique Fédérale
More informationFIBER OPTICS. Prof. R.K. Shevgaonkar. Department of Electrical Engineering. Indian Institute of Technology, Bombay. Lecture: 35. Self-Phase-Modulation
FIBER OPTICS Prof. R.K. Shevgaonkar Department of Electrical Engineering Indian Institute of Technology, Bombay Lecture: 35 Self-Phase-Modulation (SPM) Fiber Optics, Prof. R.K. Shevgaonkar, Dept. of Electrical
More informationDevelopment of Nano Second Pulsed Lasers Using Polarization Maintaining Fibers
Development of Nano Second Pulsed Lasers Using Polarization Maintaining Fibers Shun-ichi Matsushita*, * 2, Taizo Miyato*, * 2, Hiroshi Hashimoto*, * 2, Eisuke Otani* 2, Tatsuji Uchino* 2, Akira Fujisaki*,
More information