Digital Coherent Transmission: A Paradigm Shift of Optical Transmission Technology
|
|
- Harold Cooper
- 5 years ago
- Views:
Transcription
1 conference & convention enabling the next generation of networks & services Digital Coherent Transmission: A Paradigm Shift of Optical Transmission Technology Shoichiro Oda, Toshiki Tanaka, and Takeshi Hoshida Fujitsu Laboratories Ltd. 1
2 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 2
3 Introduction 1980: Proposal of coherent (heterodyne) receiver T. Okoshi and K. Kikuchi, Electron. Lett., 28th Feb. 1980, vol. 16, no. 5, pp F. Favre and D. Le Guen, Electron. Lett., 28th Aug. 1980, vol. 16, no. 18, pp During 1980s: Many R&Ds on coherent systems. 1991: Proposal of digital coherent (intradyne) receiver F. Derr, Electron. Lett., 7th Nov. 1991, vol. 27, no. 23, pp Coherent (intradyne) detection 3 ADC + DSP R&Ds on coherent systems were postponed because of advents of erbium doped fiber amplifier (EDFA) on 1989 and WDM technology on early 1990s.
4 Introduction 2003~: Reactivating R&Ds on digital coherent technology Demand of increasing capacity while keeping the same reach and total bandwidth as current system Demand of mitigation of large distortion due to CD and PMD in high bit rate system. Progress of CMOS technology, catching up with bit rate in optical communications. Relaxation of laser requirement because of increase of bit rate in optical communications. 2003: Experimental demonstration of digital coherent detection with digital equalization of chromatic dispersion M.G. Taylor, ECOC 2003, Paper We4.P : Proposal of feed-forward digital carrier recovery R. Noe, OECC 2004, Paper 16C : Experimental demonstration of demodulation of 40Gb/s polarization multiplexed QPSK after 200 km transmission S. Tsukamoto et al., OFC 2005, PDP29. QPSK: Quadrature phase shift keying CD: Chromatic dispersion PMD: Polarization mode dispersion 4
5 Introduction Key results in long-haul and high-capacity transmission experiments presented in OFC and ECOC post-deadline session Conference Paper No. Affiliation Ch No. x Bitrate/ch Distance Features ECOC2009 PD2.5 Bell Labs, Alcatel- Lucent 155 ch x 112 Gb/s 7200 km Digital coherent, 112Petabit/s km, transatlantic distance OFC2010 PDPB7 NTT 432 ch x 171 Gb/s 240 km Digital coherent, 69.1 Tb/s of total capacity OFC2010 PDPB8 Bell Labs, Alcatel- Lucent 10 ch x 224 Gb/s 1200 km Digital coherent, 4 bit/s/hz, >200Gb/s/ch OFC2010 PDPB10 Tyco 96 ch x 112 Gb/s 10,608 km Digital coherent, 3 bit/s/hz, transpacific distance Digital coherent technology is essential for long-haul and high-capacity transmission system. 5
6 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 6
7 Features of digital coherent receiver Exemplified digital coherent receiver Signal Local laser (LO) Polarization diversity 90 degree hybrid AD convertors (4ch) Digital signal processing Features of digital coherent receiver Higher OSNR tolerance Full-access to optical field of signal 7 OSNR: Optical signal to noise ratio
8 OSNR tolerance OSNR tolerance of coherent detection 10-2 ~2.2 db improvement: roughly translates to 50% reach extension 10-3 Bit error ratio Coherent detection Direct detection Gb/s, RZ-DQPSK OSNR [db] RZ-DQPSK: Return to zero differential quadrature phase shift keying 8
9 Full-access to optical field Signal E h = A h exp( j h ) E v = A v exp( j v ) Local laser (LO) Polarization diversity 90 degree hybrid A h cos h A h sin h A v cos v A v sin v AD convertors (4ch) DSP Recovering signal information, amplitude, phase, polarization Full-access to optical field of the signal Digital equalization: CD, PMD, nonlinearity Digitizing signal Handling in DSP Multi-level modulation formats (high spectral efficiency): polarization multiplexing, QAM, OFDM, and etc. CD: Chromatic dispersion, PMD: Polarization mode dispersion QAM: Quadrature amplitude modulation, OFDM: Orthogonal frequency divition multiplexing 9
10 Merit of digital coherent transmission systems Conventional Many optical components Tx Tx VDC VDC Fiber VDC VDC receiver receiver Tx VDC Insufficient reach VDC receiver VDC: Variable dispersion compensator Digital coherent Less optical components: reduced CAPEX and OPEX Multi-level modulation: high capacity Tx Tx Fiber Digital coherent Rx Digital coherent Rx Tx Extended reach Digital coherent Rx Longer reach, higher capacity, and lower cost 10
11 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 11
12 Digital coherent transceiver and its key components Transmitter H-pol. I H-pol. Q Tunable Laser V-pol. I V-pol. Q PBC Integrated transmitter Receiver Tunable Laser Polarization diversity 90 degree hybrid Integrated receiver ADC + DSP 12
13 Standardization (1) Transmitter integrated photonics Integrated polarization multiplexed quadrature modulated transmitters Implementation agreement approved on March 2010 in OIF Functionality shown in yellow area Electrical interface Mechanical specification Opto-electronic properties Etc. OIF-PMQ-TX-01.0 OIF: Optical internetworking forum 13
14 Standardization (2) Receiver integrated photonics Integrated dual polarization intradyne coherent receivers Implementation agreement Functionality (shown in yellow area) High-speed electrical interface (between the receiver and ADC) Low-speed electrical interface Mechanical specification Etc. (To be approved) Signal Local oscillator PBS BS 90 deg optical hybrid 90 deg optical hybrid X I X Q Y I Y Q ADC ADC ADC ADC 14
15 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 15
16 Digital coherent receiver Digital coherent receiver Receiver front-end (FE) Digital signal processing Polarization diversity 90 degree hybrid AD convertors (4ch) FE imperfection compensation Semi-fixed equalizer Adaptive equalizer Laser frequency Offset compensation Carrier phase recovery Decision Mux / Output interface Local laser (LO) Intradyne detection Digital equalization Front-end imperfection compensation We discuss the detection of DP-QPSK signal. 16
17 Digital coherent receiver Digital coherent receiver Receiver front-end (FE) Digital signal processing Polarization diversity 90 degree hybrid AD convertors (4ch) FE imperfection compensation Semi-fixed equalizer Adaptive equalizer Laser frequency Offset compensation Carrier phase recovery Decision Mux / Output interface Local laser (LO) Intradyne detection Digital equalization Front-end imperfection compensation 17
18 Coherent detection Frequency Control of local laser Receiver bandwidth Electrical spectrum f Heterodyne Homodyne Intradyne sig f LO Automatic frequency control Optical PLL Free-running commercial DWDM source 2x ~ symbol rate ~ symbol rate ~ symbol rate f IF BW 0 f f f f f BW sig 0 LO f sig LO Fluctuation by laser frequency drift 0 f We focus on intradyne detection. 18
19 Phase recovery algorithms Received signal: E n Aexp[ j( ( n) ( n) nt )] s e QPSK symbol phase Carrier phase offset e Carrier frequency offset Signal LO frequency Random phase deviation much slower than symbol rate (less than ~10MHz) Phase rotation due to laser frequency mismatch (5 GHz max.) Symbol phase rotates due to carrier phase and frequency offset. 19
20 Frequency offset compensation Phase rotator e E n Aexp[ j( ( n) ( n) nt )] s e Frequency offset estimator E' n Aexp[ j( s ( n) e( n))] Examples of frequency offset estimation algorithms Mth power based estimator A. Leven et al., PTL 19, pp , I+jQ Z -1 ( )* ( ) m N arg( )/m T Pre-decision-based angle differential estimator (PADE) Li et al., OFC08, OWT4. I+jQ arg( ) Data decision Z -1 Z -1 abs( )>? No Loop filter T 20
21 Carrier phase recovery Mth power carrier phase recovery algorithm A. J. Viterbi et al., Trans. Inform. Theory, IT-29, pp , D. S. Ly-Gagnon et al., JLT, 24, pp , n e E' Aexp[ j( ( n) ( n))] s e Carrier phase estimator m 1 ) arg( m ( ) 1 N m e arg m n 1 E'( n) Phase rotator E r n Aexp[ j ( n)] s Symbol phase is recovered by digital cancellation of carrier phase and frequency offset. 21
22 Digital coherent receiver Digital coherent receiver Receiver front-end (FE) Digital signal processing Polarization diversity 90 degree hybrid AD convertors (4ch) FE imperfection compensation Semi-fixed equalizer Adaptive equalizer Laser frequency Offset compensation Carrier phase recovery Decision Mux / Output interface Local laser (LO) Intradyne detection Digital equalization Front-end imperfection compensation 22
23 Semi-fixed equalizer Semi-fixed equalizer is responsible for coarse compensation of large dispersion. Semi-fixed equalizer is implemented by temporal domain filter (FIR filter) and frequency domain filter. Time domain filter (FIR filter) Input T/2 T/2 T/2 Frequency domain filter k(1) C(1) C(M-2) C(M-1) C(M) Input FFT k( M 1) IFFT Output Output k(m ) 23
24 Complexity comparison between time and frequency domain filter 24
25 Adaptive equalizer Adaptive equalizer is responsible for Polarization demultiplexing Equalization of distorted waveform due to PMD, residual CD, etc. Butterfly structure FIR filters H pol. input FIR xx H pol. output FIR xy V pol. input FIR yx FIR yy Adaptation algorithm V pol. output Adaptation algorithms LMS (least mean square) algorithm: Data aided equalization CMA (constant modulus algorithm): Blind equalization 25
26 PMD compensation 43Gb/s DP-QPSK transmitter Polarization controller DGD emulator Optical power P = Px + Py Power splitting ratio = Px /(Px +Py ) P Digital coherent receiver OSNR=13dB 4x7-tap Butterfly FIR filter Q (db) DGD (ps) DGD: Differential group delay
27 Digital coherent receiver Digital coherent receiver Receiver front-end (FE) Digital signal processing Polarization diversity 90 degree hybrid AD convertors (4ch) FE imperfection compensation Semi-fixed equalizer Adaptive equalizer Laser frequency Offset compensation Carrier phase recovey Decision Mux / Output interface Local laser (LO) Intradyne detection Distortion equalization Front-end imperfection compensation 27
28 Receiver front-end imperfection Signal quality may be impaired due to receiver front-end imperfection. Phase error of 90 degree optical hybrid Bandwidth imbalance Signal Local laser (LO) Polarization diversity 90 degree hybrid AD convertors (4ch) Digital signal processing Skew Amplitude imbalance 28
29 Skew tolerance Q-penalty [db] Gb/s DP-NRZ-QPSK OSNR 18dB CD 21,000 ps/nm 3ps skew LO w/o. skew Receiver front-end Skew= 1-2 I Q I Q ADC (4ch) DSP Skew [ps] Improvement of skew tolerance is required. 29
30 Digital skew compensation DSP T. Tanimura et al., ECOC2009, LO Receiver front-end ADC (4ch) Digital skew compensator Equalizer Phase recovery Decision I (H pol.) Q (H pol.) I (V pol.) Q (V pol.) input Z -1 Z -1 C 0 C 1 C 2 output Digital skew compensator with 3 tap FIR. 30
31 Improvement of skew tolerance Q-penalty [db] 2 1 with Skew compensator without Skew compensator 7x improvement 112 Gb/s DP-NRZ-QPSK OSNR=18 db CD=21,000 ps/nm Skew [ps] Requirement of skew can be relaxed by digital skew compensator. 31
32 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 32
33 Mitigation of nonlinear impairments OSNR improvement by increasing optical power Nonlinear limit OSNR limit Performance degradation due to nonlinear impairments Q-value Optical power Algorithms for mitigating the both intra and inter-channel non-linear impairments are expected to extend the transmission reach. 33
34 Digital backpropagation nonlinear equalizer (DBP-NLE) S. Oda et al., OFC2009, OThR6. T. Tanimura et al., ECOC2009, Tx Tx LO Receiver front-end ADC (4ch) DSP Digital backpropagation Adaptive Equalizer Phase recovery Decision distorted signal input 1st stage LE NLE N-th stage LE NLE equalized signal output H-pol. V-pol. 2 x x x 2 x x exp(-j ) + + x exp(-j ) H-pol. V-pol. 34
35 Experimental demonstration Launched power: +5.5 dbm/ch. 112Gb/s Symbol-aligned DP-NRZ-QPSK, symbol-interleaved DP-RZ-QPSK ch nm ch. 1 ch Gb/s DP-QPSK 112 Gb/s DP-QPSK PC PC CPL PC SW SW ASE CPL LO CPL DEMUX Optical hybrid PD PD PD PD DSO 50 GSa/s 60 km SMF 60 km 60 km 60 km 60 km ROADM #1 ROADM #5 ROADM #4 ROADM #3 ROADM #2 EDFA WSS EDFA No optical dispersion compensation WSS: Wavelength-selective switch, DSO: Digital storage oscilloscope 35
36 Q-improvement vs. spans Q-improvement [db] Symbol-aligned NRZ Symbol-interleaved RZ OSNR=20 db Number of Spans > 2dB Q-improvement Q-improvement by DBP-NLE exceeded 2dB regardless of pulse formats. 36
37 Nonlinear polarization crosstalk Polarization crosstalk due to XPM L. Li et al., OFC2010, Paper OWE3. V t XPM V t Polarization crosstalk H H H-pol: S h V-pol: S v Polarization crosstalk monitor R h R v S h W hv=(r h S h )/S v Averaging S v W vh =(R v S v )/S h Averaging 37 W hv W vh H-pol: R h = S h + W hv S v V-pol: R v = S v + W vh S h Monitored autocorrelation of W hv Auto correlation of W hv (a.u.) Symbol Period
38 Nonlinear polarization crosstalk canceller (NPCC) DSP L. Li et al., OFC2010, Paper OWE3. Signal LO Receiver front-end ADC (4ch) Equalizer Phase recovery NPCC Decision R h Delay Delay R v + - W hv S h W hv=(r h S h )/S v Averaging R h W vh =(R v S v )/S h Averaging R v S v Delay Delay 38 R h + W vh - R v
39 Experimental demonstration 40 x 112 Gb/s DP-QPSK 100 GHz channel spacing Launched power: +2.5 dbm/ch. ch. 1 ch. 19 ch. 2 ch. 40 Tx 112 Gb/s DP-QPSK 112 Gb/s DP-QPSK PC PC CPL PC SW ASE LO CPL DEMUX Optical hybrid PD PD PD PD DSO 50 GSa/s SW CPL Node #5 60 km Node #4 SMF 60 km 60 km 60 km 60 km Node #3 Node #2 39 EDFA Node #1 DCF WSS EDFA 105% in-line dispersion compensation
40 Q-improvement vs. distance Q Improvement (db) OSNR=18dB NRZ aligned Distance (km) With DBP-NLE, Q-improvement by NPCC further improved besides the Q-improvement by the DBP-NLC itself. 0.9 db Q-improvement 40
41 Outline Introduction Merit of digital coherent transmission systems Digital coherent transceiver and its key components Digital signal processing algorithms Nonlinear mitigation algorithms Dispersion map optimization Summary 41
42 Dispersion map optimization Digital coherent Rx with large chromatic dispersion tolerance possibly can remove in-line dispersion compensation (DC) and pre-dcf Optimizing amount of in-line DC ratio and pre-dcf System model Launched power: 0dBm/ch. 50 GHz channel spacing 100Gb/s DP-QPSK Tx Node Digital Coherent Rx 100Gb/s DP-QPSK Tx Pre- DCF SMF 60 km WSS DCF x25 Digital Coherent Rx 42
43 Results Q penalty (db) In-line DC ratio 98% 0% 20% 40% 60% 80% Pre-DCF [ps/nm] 0% in-line DC ratio with optimum pre-dcf is best performance. Pre-DCF improves performance regardless of in-line DC ratio. The improvement by pre-dcf increases with in-line DC ratio. 43
44 80ch x 112Gb/s DP-QPSK, 3000km-long DCF-less transmission experiment No optical dispersion compensation ch. 1 ch. 79 ch. 2 ch Gb/s DP-QPSK 112 Gb/s DP-QPSK SW ASE LO Optical hybrid PD PD PD PD 50 GSa/s DSO SW SSMF 100 km SSMF 100 km SSMF 100 km SSMF 100 km SSMF 100 km SSMF 100 km Repeater #6 Repeater #5 Repeater #4 Repeater #3 Repeater #2 Repeater #1 After 3000km Q= 8.8dB at OSNR=15dB Q H-pol. I 44 Q V-pol. I Please visit Fujitsu booth for further information.
45 Summary Basics and recent progress of digital coherent technology have been reviewed. Features of digital coherent receiver: Higher OSNR tolerance, Full-access to optical field Digital signal processing algorithms: Phase recovery, Digital equalization Nonlinear mitigation algorithms: DBP-NLE, NPCC Dispersion map optimization: DCF-less transmission system Digital coherent technology is indispensable for long-haul and high-capacity transmission systems. 45
46 Acknowledgements The authors thank the contributions of the following colleagues Jens C. Rasmussen Hisao Nakashima Takahito Tanimura Zhenning Tao Lei Li Liang Liu Izumi Yokota Akira Sugiyama Hiroshi Nakamoto Hiroyuki Irie 46
47 47
48 2010 conference & convention enabling the next generation of networks & services The 7th International Conference & Convention on Undersea Telecommunications Pacifico Convention Plaza Yokohama & InterContinental The Grand Yokohama 11 ~ 14 May
40Gb/s & 100Gb/s Transport in the WAN Dr. Olga Vassilieva Fujitsu Laboratories of America, Inc. Richardson, Texas
40Gb/s & 100Gb/s Transport in the WAN Dr. Olga Vassilieva Fujitsu Laboratories of America, Inc. Richardson, Texas All Rights Reserved, 2007 Fujitsu Laboratories of America, Inc. Outline Introduction Challenges
More informationFibers for Next Generation High Spectral Efficiency
Fibers for Next Generation High Spectral Efficiency Undersea Cable Systems Neal S. Bergano and Alexei Pilipetskii Tyco Electronics Subsea Communications Presenter Profile Alexei Pilipetskii received his
More information60 Gbit/s 64 QAM-OFDM coherent optical transmission with a 5.3 GHz bandwidth
60 Gbit/s 64 QAM-OFDM coherent optical transmission with a 5.3 GHz bandwidth Tatsunori Omiya a), Seiji Okamoto, Keisuke Kasai, Masato Yoshida, and Masataka Nakazawa Research Institute of Electrical Communication,
More informationLecture 7 Fiber Optical Communication Lecture 7, Slide 1
Dispersion management Lecture 7 Dispersion compensating fibers (DCF) Fiber Bragg gratings (FBG) Dispersion-equalizing filters Optical phase conjugation (OPC) Electronic dispersion compensation (EDC) Fiber
More informationPeter J. Winzer Bell Labs, Alcatel-Lucent. Special thanks to: R.-J. Essiambre, A. Gnauck, G. Raybon, C. Doerr
Optically-routed long-haul networks Peter J. Winzer Bell Labs, Alcatel-Lucent Special thanks to: R.-J. Essiambre, A. Gnauck, G. Raybon, C. Doerr Outline Need and drivers for transport capacity Spectral
More informationSingle- versus Dual-Carrier Transmission for Installed Submarine Cable Upgrades
Single- versus Dual-Carrier Transmission for Installed Submarine Cable Upgrades L. Molle, M. Nölle, C. Schubert (Fraunhofer Institute for Telecommunications, HHI) W. Wong, S. Webb, J. Schwartz (Xtera Communications)
More informationEffects of Polarization Tracker on 80 and 112 Gb/s PDM-DQPSK with Spectral Amplitude Code Labels
, July 5-7, 2017, London, U.K. Effects of Polarization Tracker on 80 and 112 Gb/s PDM-DQPSK with Spectral Amplitude Code Labels Aboagye Adjaye Isaac, Fushen Chen, Yongsheng Cao, Deynu Faith Kwaku Abstract
More informationNonlinear mitigation using carrier phase estimation and digital backward propagation in coherent QAM transmission
Nonlinear mitigation using carrier phase estimation and digital backward propagation in coherent QAM transmission Chien-Yu Lin, Rameez Asif, Michael Holtmannspoetter and Bernhard Schmauss Institute of
More informationAnalytical Estimation in Differential Optical Transmission Systems Influenced by Equalization Enhanced Phase Noise
Analytical Estimation in Differential Optical Transmission Systems Influenced by Equalization Enhanced Phase Noise Tianhua Xu 1,*,Gunnar Jacobsen 2,3,Sergei Popov 2, Tiegen Liu 4, Yimo Zhang 4, and Polina
More informationNext-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 informationEmerging 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 informationWDM in backbone. Péter Barta Alcatel-Lucent
WDM in backbone Péter Barta Alcatel-Lucent 10. October 2012 AGENDA 1. ROADM solutions 2. 40G, 100G, 400G 2 1. ROADM solutions 3 Ch 1-8 Ch 9-16 Ch 25-32 Ch 17-24 ROADM solutions What to achieve? Typical
More informationDigital back-propagation for spectrally efficient WDM 112 Gbit/s PM m-ary QAM transmission
Digital back-propagation for spectrally efficient WDM 112 Gbit/s PM m-ary QAM transmission Danish Rafique,* Jian Zhao, and Andrew D. Ellis Photonics Systems Group, Tyndall National Institute and Department
More informationSingle 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 information40Gb/s Coherent DP-PSK for Submarine Applications
4Gb/s Coherent DP-PSK for Submarine Applications Jamie Gaudette, Elizabeth Rivera Hartling, Mark Hinds, John Sitch, Robert Hadaway Email: Nortel, 3 Carling Ave., Ottawa, ON, Canada
More informationPerformance 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 informationPolarization Mode Dispersion and Its Mitigation Techniques in High Speed Fiber Optical Communication Systems
Polarization Mode Dispersion and Its Mitigation Techniques in High Speed Fiber Optical Communication Systems Chongjin Xie Bell Labs, Lucent Technologies 791 Holmdel-Keyport Road, Holmdel, NJ 07733 WOCC
More informationOptical Measurements in 100 and 400 Gb/s Networks: Will Coherent Receivers Take Over? Fred Heismann
Optical Measurements in 100 and 400 Gb/s Networks: Will Coherent Receivers Take Over? Fred Heismann Chief Scientist Fiberoptic Test & Measurement Key Trends in DWDM and Impact on Test & Measurement Complex
More informationEmerging 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 informationPROCEEDINGS OF SPIE. Advances in coherent detection algorithms
PROCEEDINGS OF SPIE SPIEDigitalLibrary.org/conferenceproceedingsofspie Advances in coherent detection algorithms Jens C. Rasmussen, Takeshi Hoshida, Takahito Tanimura, Hisao Nakashima, Shoichiro Oda, et
More information40 Gb/s and 100 Gb/s Ultra Long Haul Submarine Systems
4 Gb/s and 1 Gb/s Ultra Long Haul Submarine Systems Jamie Gaudette, John Sitch, Mark Hinds, Elizabeth Rivera Hartling, Phil Rolle, Robert Hadaway, Kim Roberts [Nortel], Brian Smith, Dean Veverka [Southern
More informationPhase 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 informationPLC-based integrated devices for advanced modulation formats
ECOC 2009 workshop 7-5 Sep. 20, 2009 PLC-based integrated devices for advanced modulation formats Y. Inoue NTT Photonics Labs. NTT Corporation NTT Photonics Laboratories Hybrid integration of photonics
More informationfrom ocean to cloud THE FUTURE IS NOW - MAXIMIZING SPECTRAL EFFICIENCY AND CAPACITY USING MODERN COHERENT TRANSPONDER TECHNIQUES
Required OSNR (db/0.1nm RBW) @ 10-dB Q-factor THE FUTURE IS NOW - MAXIMIZING SPECTRAL EFFICIENCY AND CAPACITY USING MODERN COHERENT TRANSPONDER TECHNIQUES Neal S. Bergano, Georg Mohs, and Alexei Pilipetskii
More informationfrom ocean to cloud LOW COMPLEXITY BACK-PROPAGATION FOR UPGRADING LEGACY SUBMARINE SYSTEMS
LOW COMPLEXITY BACK-PROPAGATION FOR UPGRADING LEGACY SUBMARINE SYSTEMS Eduardo Mateo 1, Takanori Inoue 1, Fatih Yaman 2, Ting Wang 2, Yoshihisa Inada 1, Takaaki Ogata 1 and Yasuhiro Aoki 1 Email: e-mateo@cb.jp.nec.com
More informationPerformance 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 information1 COPYRIGHT 2011 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
1 ECOC 2011 WORKSHOP Space-Division Multiplexed Transmission in Strongly Coupled Few-Mode and Multi-Core Fibers Roland Ryf September 18 th 2011 CONTENTS 1. THE CAPACITY CRUNCH 2. SPACE DIVISION MULTIPLEXING
More informationFiber Nonlinearity Compensation Methods (used by our group)
Fiber Nonlinearity Compensation (NLC) Research Vignette a brief history and selection of papers and figures Professor Arthur Lowery Monash Electro Photonics Laboratory, PhDs: Liang Du, Md. Monir Morshed
More informationfrom ocean to cloud WELCOME TO 400GB/S & 1TB/S ERA FOR HIGH SPECTRAL EFFICIENCY UNDERSEA SYSTEMS
WELCOME TO 400GB/S & 1TB/S ERA FOR HIGH SPECTRAL EFFICIENCY UNDERSEA SYSTEMS G. Charlet, O. Bertran-Pardo, M. Salsi, J. Renaudier, P. Tran, H. Mardoyan, P. Brindel, A. Ghazisaeidi, S. Bigo (Alcatel-Lucent
More informationEnabling technology for suppressing nonlinear interchannel crosstalk in DWDM transoceanic systems
1/13 Enabling technology for suppressing nonlinear interchannel crosstalk in DWDM transoceanic systems H. Zhang R.B. Jander C. Davidson D. Kovsh, L. Liu A. Pilipetskii and N. Bergano April 2005 1/12 Main
More informationPhase Noise Compensation for Coherent Orthogonal Frequency Division Multiplexing in Optical Fiber Communications Systems
Jassim K. Hmood Department of Laser and Optoelectronic Engineering, University of Technology, Baghdad, Iraq Phase Noise Compensation for Coherent Orthogonal Frequency Division Multiplexing in Optical Fiber
More informationNonlinear Effects Compensation in Optical Coherent PDM-QPSK Systems
707 Nonlinear Effects Compensation in Optical Coherent PDM-QPSK Systems Eduardo S. Rosa 1*,Victor E. S. Parahyba 1, Júlio C. M. Diniz 1, Vitor B. Ribeiro 1 and Júlio C. R. F. Oliveira 1 CPqD Foundation
More informationNext Generation Optical Communication Systems
Next-Generation Optical Communication Systems Photonics Laboratory Department of Microtechnology and Nanoscience (MC2) Chalmers University of Technology May 10, 2010 SSF project mid-term presentation Outline
More informationLow Power DSP and Photonic Integration in Optical Networks. Atul Srivastava CTO, NTT Electronics - America. Market Focus ECOC 2014
Low Power DSP and Photonic Integration in Optical Networks Atul Srivastava CTO, NTT Electronics - America Market Focus ECOC 2014 Outline 100G Deployment Rapid Growth in Long Haul Role of Modules New Low
More informationMike Harrop
Issues in DWDM Testing Mike Harrop mike.harrop@exfo.com 1 Agenda What your Equipment Measurement system doesn t tell you Challenges with 100G Other impairments in optical systems 2 Rise of EMS 3 Situation
More informationPHASE MODULATION FOR THE TRANSMISSION OF NX40GBIT/S DATA OVER TRANSOCEANIC DISTANCES
- -2-3 -4-5 -6 54.5 54.6 54.7 54.8 54.9 542 - -2-3 -4-5 -6 54.5 54.6 54.7 54.8 54.9 542 - -2-3 -4-5 -6 54.5 54.6 54.7 54.8 54.9 542 PHASE MODULATION FOR THE TRANSMISSION OF NX4GBIT/S DATA OVER TRANSOCEANIC
More informationTechnologies for Optical Transceivers and Optical Nodes to Increase Transmission Capacity to 100 Tbps
Technologies for Optical Transceivers and Optical Nodes to Increase Transmission Capacity to 100 Tbps Takeshi Hoshida Takahito Tanimura Tomoyuki Kato Shigeki Watanabe Zhenning Tao Enhancing the capacity
More informationPerformance Analysis of Direct Detection-Based Modulation Formats for WDM Long-Haul Transmission Systems Abstract 1.0 Introduction
Performance Analysis of Direct Detection-Based Modulation Formats for WDM Long-Haul Transmission Systems PRLightCOM Broadband Solutions Pvt. Ltd. Bangalore, Karnataka, INDIA Abstract During the last decade,
More informationConscious Optical Network with Reliability and Flexibility
Conscious Optical Network with Reliability and Flexibility Yasuko Nozu Yasuhiko Aoki Kosuke Komaki Satoru Okano The most important requirements in optical networks have been high speed, large bandwidth,
More informationSensors & Transducers Published by IFSA Publishing, S. L.,
Sensors & Transducers Published by IFSA Publishing, S. L., 2018 http://www.sensorsportal.com Digital Multiband DP-M-QAM System Using Dual-phaseconjugated Code in Long-haul Fiber Transmission with Polarization-dependent
More informationPERFORMANCE DEGRADATION OF 100 Gb/s PM-QPSK AND 400 Gb/s PM-16QAM COHERENT COMMUNICATION SYSTEMS DUE TO
PERFORMANCE DEGRADATION OF 100 Gb/s PM-QPSK AND 400 Gb/s PM-16QAM COHERENT COMMUNICATION SYSTEMS DUE TO OPTICAL FILTER CASCADE AND CHROMATIC DISPERSION by Rami Yousef Al-Dalky A Thesis Presented to the
More informationUltrahigh-capacity Digital Coherent Optical Transmission Technology
: Ultrahigh-speed Ultrahigh-capacity Optical Transport Network Ultrahigh-capacity Digital Coherent Optical Transmission Technology Yutaka Miyamoto, Akihide Sano, Eiji Yoshida, and Toshikazu Sakano Abstract
More informationMitigation 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 informationSpectrally-Efficient 17.6-Tb/s DWDM Optical Transmission System over 678 km with Pre-Filtering Analysis
229 Spectrally-Efficient 17.6-Tb/s DWDM Optical Transmission System over 678 km with Pre-Filtering Analysis L. H. H. Carvalho, E. P. Silva, R. Silva, J. P. K Perin, J. C. R. F. Oliveira, M. L. Silva, P.
More informationfrom ocean to cloud Copyright SubOptic2013 Page 1 of 5
Applicability of Multi-wave-modulation Loading Scheme and ASE Dummy Loading Method in 40G PDM-PSK Coherent Systems for Full-capacity Performance Evaluation Jiping Wen, Xiaoyan Fan, Tiegang Zhou, Guohui
More informationGlobal Consumer Internet Traffic
Evolving Optical Transport Networks to 100G Lambdas and Beyond Gaylord Hart Infinera Abstract The cable industry is beginning to migrate to 100G core optical transport waves, which greatly improve fiber
More informationProposal of A Star-16QAM System Based on Intersymbol Interference (ISI) Suppression and Coherent Detection
Proposal of A Star-16QAM System Based on Intersymbol Interference (ISI) Suppression and Coherent Detection Liang Zhang, Xiaofeng Hu, Tao Wang, Qi Liu, Yikai Su State Key Lab of Advanced Optical Communication
More information40Gb/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 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 informationYan Tang. Doctor of Philosophy
High-speed Optical Transmission System Using Coherent Optical Orthogonal Frequency-Division Multiplexing by Yan Tang Submitted in total fulfilment of the requirements of the degree of Doctor of Philosophy
More informationCoherent Receivers: A New Paradigm For Optical Components. ECOC Market Focus September 20, 2010
Photonic Integrated Circuit Based Coherent Receivers: A New Paradigm For Optical Components G. Ferris Lipscomb ECOC Market Focus September 20, 2010 Agenda Advanced Coding Schemes Use Phase Encoding To
More informationPerformance Analysis of 112 Gb/s PDM- DQPSK Optical System with Frequency Swept Coherent Detected Spectral Amplitude Labels
, June 29 - July 1, 2016, London, U.K. Performance Analysis of 112 Gb/s PDM- DQPSK Optical System with Frequency Swept Coherent Detected Spectral Amplitude Labels Aboagye Isaac Adjaye, Chen Fushen, Cao
More information(1) Istituto Superiore Mario Boella, Torino - Italy (2) OPTCOM Optical Communications Group Politecnico di Torino, Torino - Italy (3) Cisco Photonics
(1) Istituto Superiore Mario Boella, Torino - Italy (2) OPTCOM Optical Communications Group Politecnico di Torino, Torino - Italy (3) Cisco Photonics Italy, Vimercate - Italy In long-haul system, maximum
More informationfrom ocean to cloud DIMINISHED NONLINEAR IMPACT OF BIT-ALIGNED POLARIZATION MULTIPLEXING WITH ADVANCED MODULATION FORMATS ON SUBSEA CABLES
DIMINISHED NONLINEAR IMPACT OF BIT-ALIGNED POLARIZATION MULTIPLEXING WITH ADVANCED MODULATION FORMATS ON SUBSEA CABLES Emily Burmeister, Pierre Mertz, Hai Xu, Xiaohui Yang, Han Sun, Steve Grubb, Dave Welch
More informationSpectral-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 information1312 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 30, NO. 9, MAY 1, 2012
1312 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 30, NO. 9, MAY 1, 2012 Generation and Detection of 28 Gbaud Polarization Switched-QPSK in WDM Long-Haul Transmission Systems Jérémie Renaudier, Member, IEEE,
More informationThe Affection of Fiber Nonlinearity in Coherent Optical Communication System
013 8th International Conference on Communications and Networking in China (CHINACOM) The Affection of Fiber Nonlinearity in Coherent Optical Communication System Invited Paper Yaojun Qiao*, Yanfei Xu,
More informationTemporal 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 informationFrom static WDM transport to software-defined optics
From static WDM transport to software-defined optics Jörg-Peter Elbers, ADVA Optical Networking ECOC Market Focus - Sept 21 st, 2010 - Torino Outline Introduction Technologies Benefits Applications Summary
More informationPolarization Related Tests for Coherent Detection Systems
INTRODUCTION Coherent detection with polarization division multiplexing (PDM) has emerged as the key technology enabler for 40 Gbps and 100 Gbps networks because it significantly increases the spectral
More informationNon-linear compensation techniques for coherent fibre transmission
Non-linear compensation techniques for coherent fibre transmission Marco Forzati a*, Jonas Mårtensson a, Hou-Man Chin a, Marco Mussolin a, Danish Rafique b, Fernando Guiomar c a Acreo AB, 164 40 Kista,
More informationReach Enhancement of 100%for a DP-64QAM Super Channel using MC-DBP with an ISD of 9b/s/Hz
MITSUBISHI ELECTRIC RESEARCH LABORATORIES http://www.merl.com Reach Enhancement of 100%for a DP-64QAM Super Channel using MC-DBP with an ISD of 9b/s/Hz Maher, R.; Lavery, D.; Millar, D.S.; Alvarado, A.;
More informationRZ 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 informationError Probability Estimation for Coherent Optical PDM-QPSK Communications Systems
Error Probability Estimation for Coherent Optical PDM-QPSK Communications Systems Xianming Zhu a, Ioannis Roudas a,b, John C. Cartledge c a Science&Technology, Corning Incorporated, Corning, NY, 14831,
More informationPolarization Optimized PMD Source Applications
PMD mitigation in 40Gb/s systems Polarization Optimized PMD Source Applications As the bit rate of fiber optic communication systems increases from 10 Gbps to 40Gbps, 100 Gbps, and beyond, polarization
More informationREDUCTION OF CROSSTALK IN WAVELENGTH DIVISION MULTIPLEXED FIBER OPTIC COMMUNICATION SYSTEMS
Progress In Electromagnetics Research, PIER 77, 367 378, 2007 REDUCTION OF CROSSTALK IN WAVELENGTH DIVISION MULTIPLEXED FIBER OPTIC COMMUNICATION SYSTEMS R. Tripathi Northern India Engineering College
More informationMulti-format all-optical-3r-regeneration technology
Multi-format all-optical-3r-regeneration technology Masatoshi Kagawa Hitoshi Murai Amount of information flowing through the Internet is growing by about 40% per year. In Japan, the monthly average has
More informationJOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 29, NO. 21, NOVEMBER 1, Impact of Channel Count and PMD on Polarization-Multiplexed QPSK Transmission
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 29, NO. 21, NOVEMBER 1, 2011 3223 Impact of Channel Count and PMD on Polarization-Multiplexed QPSK Transmission C. Xia, W. Schairer, A. Striegler, L. Rapp, M. Kuschnerov,
More informationComparison of nonlinearity tolerance of modulation formats for subcarrier modulation
MITSUBISHI ELECTRIC RESEARCH LABORATORIES http://www.merl.com Comparison of nonlinearity tolerance of modulation formats for subcarrier modulation Kojima, K.; Yoshida, T.; Parsons, K.; Koike-Akino, T.;
More informationInvestigation of a novel structure for 6PolSK-QPSK modulation
Li et al. EURASIP Journal on Wireless Communications and Networking (2017) 2017:66 DOI 10.1186/s13638-017-0860-0 RESEARCH Investigation of a novel structure for 6PolSK-QPSK modulation Yupeng Li 1,2*, Ming
More informationStudy of physical layer impairments in high speed optical networks. Mohsan Niaz Chughtai
Study of physical layer impairments in high speed optical networks. Mohsan Niaz Chughtai Licentiate Thesis in Communication Systems Stockholm, Sweden 2012 TRITA: ICT-COS-1204 ISSN: 1653-6347 ISRN: KTH/COS/R--12/04
More informationCurrent 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 informationChalmers Publication Library. Copyright Notice. (Article begins on next page)
Chalmers Publication Library Copyright Notice This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following
More informationTechnical 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 informationPSO-200 OPTICAL MODULATION ANALYZER
PSO-200 OPTICAL MODULATION ANALYZER Future-proof characterization of any optical signal SPEC SHEET KEY FEATURES All-optical design providing the effective bandwidth to properly characterize waveforms and
More informationKeysight Technologies Characterizing High-Speed Coherent Optical Transmission Systems
Keysight Technologies Characterizing High-Speed Coherent Optical Transmission Systems Application Brief M8195A 65 GSa/s Arbitrary Waveform Generator N4391A Optical Modulation Analyzer & N4392A Integrated
More informationNonlinear Limits in Single- and Dual-Polarization Transmission
Nonlinear Limits in Single- and Dual-Polarization Transmission A. Bononi, P. Serena, N. Rossi Department of Information Engineering, University of Parma, Parma, Italy 1/40 Outline Motivation, objectives,
More informationOptical Networks emerging technologies and architectures
Optical Networks emerging technologies and architectures Faculty of Computer Science, Electronics and Telecommunications Department of Telecommunications Artur Lasoń 100 Gb/s PM-QPSK (DP-QPSK) module Hot
More informationDIGITAL signal processing has been revolutionizing communication
JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 26, NO. 10, MAY 15, 2008 1309 Phase Noise Effects on High Spectral Efficiency Coherent Optical OFDM Transmission Xingwen Yi, William Shieh, Member, IEEE, and Yiran
More informationEmerging Subsea Networks
ULTRA HIGH CAPACITY TRANSOCEANIC TRANSMISSION Gabriel Charlet, Ivan Fernandez de Jauregui, Amirhossein Ghazisaeidi, Rafael Rios-Müller (Bell Labs, Nokia) Stéphane Ruggeri (ASN) Gabriel.charlet@nokia.com
More informationReal-time Implementation of Digital Coherent Detection
R. Noé 1 Real-time Implementation of Digital Coherent Detection R. Noé, U. Rückert, S. Hoffmann, R. Peveling, T. Pfau, M. El-Darawy, A. Al-Bermani University of Paderborn, Electrical Engineering Optical
More informationA 40 GHz, 770 fs regeneratively mode-locked erbium fiber laser operating
LETTER IEICE Electronics Express, Vol.14, No.19, 1 10 A 40 GHz, 770 fs regeneratively mode-locked erbium fiber laser operating at 1.6 µm Koudai Harako a), Masato Yoshida, Toshihiko Hirooka, and Masataka
More informationDocument Version Publisher s PDF, also known as Version of Record (includes final page, issue and volume numbers)
Transmission and reception of quad-carrier QPSK-OFDM signal with blind equalization and overhead-free operation Li, F.; Zhang, J.; Cao, Z.; Yu, J.; Li, Xinying; Chen, L.; Xia, Y.; Chen, Y. Published in:
More informationCOHERENT DETECTION OPTICAL OFDM SYSTEM
342 COHERENT DETECTION OPTICAL OFDM SYSTEM Puneet Mittal, Nitesh Singh Chauhan, Anand Gaurav B.Tech student, Electronics and Communication Engineering, VIT University, Vellore, India Jabeena A Faculty,
More informationLaser Frequency Drift Compensation with Han-Kobayashi Coding in Superchannel Nonlinear Optical Communications
MITSUBISHI ELECTRIC RESEARCH LABORATORIES http://www.merl.com Laser Frequency Drift Compensation with Han-Kobayashi Coding in Superchannel Nonlinear Optical Communications Koie-Aino, T.; Millar, D.S.;
More informationPerformance of Coherent Optical OFDM in WDM System Based on QPSK and 16-QAM Modulation through Super channels
International Journal of Engineering and Technology Volume 5 No. 3,March, 2015 Performance of Coherent Optical OFDM in WDM System Based on QPSK and 16-QAM Modulation through Super channels Laith Ali Abdul-Rahaim
More informationAn Amplified WDM-PON Using Broadband Light Source Seeded Optical Sources and a Novel Bidirectional Reach Extender
Journal of the Optical Society of Korea Vol. 15, No. 3, September 2011, pp. 222-226 DOI: http://dx.doi.org/10.3807/josk.2011.15.3.222 An Amplified WDM-PON Using Broadband Light Source Seeded Optical Sources
More informationChapter 3 Metro Network Simulation
Chapter 3 Metro Network Simulation 3.1 Photonic Simulation Tools Simulation of photonic system has become a necessity due to the complex interactions within and between components. Tools have evolved from
More informationEmerging Subsea Networks
Transoceanic Transmission over 11,450km of Installed 10G System by Using Commercial 100G Dual-Carrier PDM-BPSK Ling Zhao, Hao Liu, Jiping Wen, Jiang Lin, Yanpu Wang, Xiaoyan Fan, Jing Ning Email: zhaoling0618@huaweimarine.com
More informationsynqpsk Univ. Paderborn, Germany; CeLight Israel; Photline, France; IPAG, Germany
1 Components for Synchronous Optical Quadrature Phase Shift Keying Transmission Contract 004631 in FP6 IST-2002-2.3.2.2 Optical, opto-electronic, & photonic functional components synqpsk Univ. Paderborn,
More informationOptical Fiber Enabler of Wireless Devices in the Palms of Your Hands
Optical Fiber Enabler of Wireless Devices in the Palms of Your Hands A Presentation to EE1001 Class of Electrical Engineering Department at University of Minnesota Duluth By Professor Imran Hayee Smartphone
More informationCodeSScientific. OCSim Modules 2018 version 2.0. Fiber Optic Communication System Simulations Software Modules with Matlab
CodeSScientific OCSim Modules 2018 version 2.0 Fiber Optic Communication System Simulations Software Modules with Matlab Use the Existing Modules for Research Papers, Research Projects and Theses Modify
More informationAll-Optical and Opto-Electronic Signal Regenerators
All-Optical and Opto-Electronic Signal Regenerators Masayuki Graduate School of Engineering Osaka University 15th International SAOT Workshop on All-Optical Signal Regeneration September 28-29, 2011 1
More informationSPM mitigation in 16-ary amplitude-anddifferential-phase. transmission systems
SPM mitigation in 16-ary amplitude-anddifferential-phase shift keying long-haul optical transmission systems Dung Dai Tran and Arthur J. Lowery* Department of Electrical & Computer Systems Engineering,
More informationUNREPEATERED SYSTEMS: STATE OF THE ART
UNREPEATERED SYSTEMS: STATE OF THE ART Hans Bissessur, Isabelle Brylski, Dominique Mongardien (Alcatel-Lucent Submarine Networks), Philippe Bousselet (Alcatel-Lucent Bell Labs) Email: < hans.bissessur@alcatel-lucent.com
More informationEmerging Subsea Networks
Impact of Frequency Separation between Orthogonal Idlers on System Performance Lei Zong, Ahmed Awadalla, Pierre Mertz, Xiaohui Yang, Emily Abbess, Han Sun, Kuang-Tsan Wu, Steve Grubb Email: lzong@infinera.com
More informationDigital Optical. Communications. Le Nguyen Binh. CRC Press Taylor &. Francis Group. Boca Raton London New York
Digital Optical Communications Le Nguyen Binh CRC Press Taylor &. Francis Group Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Group, an informa business Contents Preface Acknowledgments
More informationBaseline Proposal for 400G/80km. Ilya Lyubomirsky, Jamal Riani, Ben Smith, Sudeep Bhoja, Inphi Corp. Rich Baca, Microsoft Corp.
Baseline Proposal for 400G/80km Ilya Lyubomirsky, Jamal Riani, Ben Smith, Sudeep Bhoja, Inphi Corp. Rich Baca, Microsoft Corp. IEEE P802.3cn Task Force Meeting, Nov. 12-13, 2018 Supporters Brad Booth,
More informationAll-Optical Signal Processing. Technologies for Network. Applications. Prof. Paul Prucnal. Department of Electrical Engineering PRINCETON UNIVERSITY
All-Optical Signal Processing Technologies for Network Applications Prof. Paul Prucnal Department of Electrical Engineering PRINCETON UNIVERSITY Globecom Access 06 Business Forum Advanced Technologies
More informationPMD compensation in a 2 40Gbit/s, 212km, CS-RZ polarization multiplexed transmission experiment
Universität Paderborn PMD compensation in a 2 40Gbit/s, 212km, CS-RZ polarization multiplexed transmission experiment D. Sandel, F. Wüst, V. Mirvoda, Electrical Engineering and Information Technology Universität
More information