Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Crosstalk suppression in an all-optical symmetric Mach-Zehnder (SMZ) switch employing un-equal control pulses.

Slides:

Advertisements

Similar presentations

1 Razali Ngah, and Zabih Ghassemlooy Optical Communication Research Group School of Engineering & Technology Northumbria University, United Kingdom http:

Advertisements

All-optical Packet Router Employing PPM Header Processing Prof. Z. Ghassemlooy Optical Communications Research Group School of.

M. F. Chiang, Z. Ghassemlooy, Wai Pang Ng,

NOC M. F. Chiang M. F. Chiang, Z. Ghassemlooy, Wai Pang Ng, and H. Le Minh Optical Communication Research Group Northumbria University, United Kingdom.

WP5: OTDM-to-WDM conversion update ORC CONTRIBUTION – F. Parmigiani TRIUMPH meeting

Air traffic increases steadily over the years that lead to the increase of flights through the Poles, oceans and regions with reduced radar coverage.

CHARACTERISATION OF A NOVEL DUAL-CONTROL TOAD SWITCH H Le-Minh, Z Ghassemlooy, and W P Ng Optical Communications Research Group School of Informatics,

Razali Ngah and Z Ghassemlooy Optical Communications Research Group

Optical Fibre Communication Systems

BY: OTHER AUTHORS:. Presentation Outline Introduction  All-optical packet switching  All-optical router  Mach-Zehnder Interformeter(MZI) SOA structure.

WP5 ORC/UKA joint experiment on OTDM to WDM Conversion Triumph Meeting 7 December 2007, Lisbon, Portugal.

EE 230: Optical Fiber Communication Lecture 7 From the movie Warriors of the Net Optical Amplifiers-the Basics.

ICTON 2007, Rome, Italy The Performance of PPM using Neural Network and Symbol Decoding for Diffused Indoor Optical Wireless Links 1 S. Rajbhandari, Z.

All-Optical Header Recognition M. Dagenais Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA

1 Optical Fibre Amplifiers. 2 Introduction to Optical Amplifiers Raman Fibre Amplifier Brillouin Fibre Amplifier Doped Fibre Amplifier.

EE 230: Optical Fiber Communication Lecture 15 From the movie Warriors of the Net WDM Components.

Fiber-Optic Communications

H. Le-Minh, Z. Ghassemlooy, W.P. Ng. and R. Ngah Optical Communication Research Group School of Engineering & Technology Northumbria University, Newcastle,

All-Optical Header Processing in Optical Packet-Switched Networks Hoa Le Minh, Fary Z Ghassemlooy and Wai Pang Ng Optical Communications Research Group.

1 Improving Chromatic Dispersion Tolerance in Long-Haul Fibre Links using Coherent OOFDM M. A. Jarajreh, Z. Ghassemlooy, and W. P. Ng Optical Communications.

Simulations of All-Optical Multiple-Input AND- Gate Based on Four Wave Mixing in a Single Semiconductor Optical Amplifier H. Le Minh, Z. Ghassemlooy, Wai.

An Ultrafast with High Contrast Ratio 1  2 All-optical Switch based on Tri-arm Mach- Zehnder Employing All-optical Flip-flop H. Le Minh, Z. Ghassemlooy.

Parallel Optical All Pass Filter Equalisers and Implementation by Wisit Loedhammacakra Supervision team Dr Wai Pang Ng Prof R. Cryan Prof. Z. Ghassemlooy.

Prof. Z Ghassemlooy ICEE2006, Iran Investigation of Header Extraction Based on Symmetrical Mach-Zehnder Switch and Pulse Position Modulation for All-Optical.

Professor Z Ghassemlooy

1 Simulation of High Speed Photonic Networks Professor Z. Ghassemlooy Optical Communications Research Group School of Computing,

Soliton Research at the Lightwave Communication Systems Laboratory

SKA and Optical Fibre Links R.E. Spencer JBO Dec 2001 Fibre links Fibre optics and link design Array configurations Cost implications.

Dual Header Pulse Interval Modulation (DH-PIM) Dr. Nawras Aldibbiat Professor Z Ghassemlooy Optical Communications Research Group School of Computing,

Fiber-Optic Communications

Simulation of All-optical Packet Routing employing PPM-based Header Processing in Photonic Packet Switched Core Network H. Le Minh, Z. Ghassemlooy and.

AtacamaLargeMillimeterArray Back End Preliminary Design Review, 2002 April 24-25, Granada, Spain Fibre Optic Links for IF DTS Roshene McCool Jodrell Bank.

M. F. Chiang 1, Z. Ghassemlooy 1, W. P. Ng 1, H. Le Minh 2, and A. Abd El Aziz 1 1. Optical Communications Research Group School of Computing, Engineering.

PGNET2006 M.F, Chiang M. F. Chiang, Z. Ghassemlooy, Wai Pang Ng, H. Le Minh, and V. Nwanafio Optical Communication Research Group Northumbria University,

Vadim Winebrand Faculty of Exact Sciences School of Physics and Astronomy Tel-Aviv University Research was performed under a supervision of Prof. Mark.

CEIS School Seminar 22/02/12 Improving the Data Rates of Organic Light Emitting Diodes Andrew Burton, Yr 2 Supervisors Dr. Hoa Le Minh Prof. Z. Ghassemlooy.

Poznan Supercomputing and Networking Center

Optical Components Ajmal Muhammad, Robert Forchheimer

SJD/TAB1 EVLA Fiber Selection Critical Design Review December 5, 2001.

CE 4228 Data Communications and Networking

1 Razali Ngah, and Zabih Ghassemlooy Optical Communication Research Group School of Engineering & Technology Northumbria University, United Kingdom http:

M. F. Chiang 1, Z. Ghassemlooy 1, W. P. Ng 1, and H. Le Minh 2 1. Optical Communications Research Group School of Computing, Engineering and Information.

ALL-OPTICAL PACKET HEADER PROCESSING SCHEME BASED ON PULSE POSITION MODULATION IN PACKET-SWITCHED NETWORKS Z. Ghassemlooy, H. Le Minh, Wai Pang Ng Optical.

TTM1 – 2013: Core networks and Optical Circuit Switching (OCS)

May 19-22, 2003 TERENA Networking Conference Zagreb, Croatia1 Optically Amplified Multigigabit Links in CESNET2 network Jan Radil Leoš Boháč Miroslav Karásek.

1 Razali Ngah, and Zabih Ghassemlooy Optical Communication Research Group School of Engineering & Technology Northumbria University, United Kingdom http:

1/ , Graz, Austria Power Spectral Density of Convolutional Coded Pulse Interval Modulation Z. Ghassemlooy, S. K. Hashemi and M. Amiri Optical Communications.

CLIPPING DISTORTION IN LASER DIODE: MODEL, SIMULATIONS AND STATISTICS By: Omar Falou.

EE 5551 Fiber Optic Communications Fall 2008, Sun Tue Thr 1:00-2:00 pm EE343 Instructor: Yazan A Alqudah Office Location EE446 Phone: Ext

Investigations on PMD-induced penalties in 40 Gbps optical transmission link Irfan Ullah Department of Information and Communication Engineering Myongji.

Lecture Note on Optical Components. Optical Couplers Combines & splits signals Light couples from one waveguide to a closely placed waveguide because.

Optical LANs FDDI FDDI: A High speed network, A.Shah and G.Ramakrishnan, Prentice Hall 1994 Reflective Star RAINBOW

Optical telecommunication networks.  Introduction  Multiplexing  Optical Multiplexing  Components of Optical Mux  Application  Advantages  Shortcomings/Future.

Components for WDM Networks

Power Considerations in Optical Transmission Systems in Presence of Nonlinear Phase Noise Alan Pak Tao Lau Department of Electrical Engineering, Stanford.

Indian Institute of Technology Bombay 1 Research in Fiber Optic Communication and Photonics Prof. R.K. Shevgaonkar

Josef Vojtěch, Miroslav Karásek, Jan Radil Field and lab experiences with deployment of optical amplifiers and FBGs.

Sujan Rajbhandari LCS Convolutional Coded DPIM for Indoor Optical Wireless Links S. Rajbhandari, N. M. Aldibbiat and Z. Ghassemlooy Optical Communications.

Photonic Components Rob Johnson Standards Engineering Manager 10th July 2002 Rob Johnson Standards Engineering Manager 10th July 2002.

UNIVERSITY OF WATERLOO Nortel Networks Institute University of Waterloo.

BY: SUPERVISION TEAM:. Proposed core optical router Source / target node.

Date of download: 7/11/2016 Copyright © 2016 SPIE. All rights reserved. Setup of SOA-based UNI in dual rail switching mode without timing deviation. CLK:

Performance Analysis of Optical Add Drop Multiplexer for Higher Bit Rate by Using Different Modulation Format Surinder Singh, Meenakshi, Veerpal Kaur.

Optical Switching Switch Fabrics, Techniques and Architectures

Master’s Thesis Defense

A New OEO Design Using Optical Phase Modulation and Modulation Suppression G. John Dick and Nan Yu Jet Propulsion Laboratory, California Institute of Technology.

Back End & LO PDR April 2002 FIBRE-OPTIC LINKS -An Introduction Ralph Spencer Jodrell Bank Observatory University of Manchester UK --The use of.

Optimisation of the Key SOA Parameters for Amplification and Switching

Parallel Optical All Pass Filter Equalisers and Implementation by Wisit Loedhammacakra Supervision team Dr Wai Pang Ng Prof R. Cryan Prof. Z. Ghassemlooy.

TOAD Switch with Symmetric Switching Window

Presentation transcript:

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Crosstalk suppression in an all-optical symmetric Mach-Zehnder (SMZ) switch employing un-equal control pulses Hoa Le Minh, Fary Z Ghassemlooy and Wai Pang Ng Optical Communications Research Group Northumbria Communications Research Lab Northumbria University, U.K. International Symposium on Telecommunications, Sep , 2005, Shiraz, Iran

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Contents Introduction All-optical Switches Symmetric Mach Zehnder Switch (SMZ) Simulation Results Conclusions

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Introduction Ultra-high capacity optical network relies on: –Multiplexing: DWDM and OTDM Higher aggregate bit rate –Optical transparency: Removing Opt.-Elec.-Opt. conversions (bottleneck) in routing, demultpelxing and processing tasks The need ultra-fast all-optical switches

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran All-optical Switches Mechanism: Exploiting the destructive interferences introduced by the nonlinearity element (based on XPM) to switch/demultiplex target data Configurations: –Loop based Nonlinear Optical Loop Mirror (NOLM) Semiconductor Laser Amplifier in a Loop Mirror (SLALOM) Terahertz Optical Asymmetric Demultiplexer (TOAD) –Others Ultrafast Nonlinear Interferometer (UNI) Symmetric Mach-Zehnder (SMZ) …

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran All-optical Switches contd. I- Nonlinear Optical Loop Mirror (NOLM) CP 50:50 CWCCW Input portOutput port Reflected port Data in Reflected data Switched data Long loop Long fibre loop to induce the nonlinearity (but weak and not easily controllable) High control pulse (CP) power If  = , then T x (t) = 1 (i.e.100% transmittance in port 2) Transmission is: Polarisation Long walk-off time

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran All-optical Switches contd. II- Terahertz Optical Asymmetric Demultiplexer (TOAD) CP SOA 50:50 CWCCW Input portOutput port Reflected port Short fibre loop Data in Reflected data Switched data Introduced by P. Prucnal (1993) Nonlinearity: Semiconductor Optical Amplifier (SOA) Low control pulse (CP) power High inter-channel crosstalk Asymmetrical switching window profile Synchronisation

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ Switch An optical interferometer with two identical arms Semiconductor Optical Amplifier (SOA) induce nonlinear effect (XPM) on input data signal Compact, requiring low optical power 3 dBCoupler OTDM Signal Pulses SOA1 SOA2 Output Port 2 (i) No control pulses

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ Switch – With Control No control pulse is applied Control pulses (CP1 & CP2) are applied

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ – Switching Window Switching window profile at output port 1 (  LEF : SOA linewidth enhancement factor)

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ - Switching Window CP1=CP2 Recovery region Problem –The switching window W 1 (t) will not completely close due to the difference of G 1 (t) and G 2 (t) in the recovery region. This is due to CP1 = CP2 thus setting both SOAs at the same initial saturation levels.

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ – With Unequal Control Power CP1 > CP2 Make CP2 < CP1 to minimize the recovery gain difference. Reduction ratio: R(dB) = CP1(dB) – CP2(dB)

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ - Simulation Model Optical receiver Data pulse train

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ - Simulation Parameters

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMA - Simulation Results Inter-channel crosstalk

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ - Simulation Results CP1 = CP2 Data at output port 1 Eye diagram BER ) Crosstalk

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMA - Simulation Results CP2 < CP1 R = 0.6 dB, Reduced interchannel crosstalk Improved eye opening,  improved bit error rate

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran SMZ – BER Simulation Results –35.5 dBm R = 0 dB –37.2 dBm R = 0.6 dB

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Conclusions Proposed SMZ switch with unequal control pulse powers with improved recovery gain profile. Simulation model confirmed: –Improved crosstalk characteristic –Improved optical receiver sensitivity up to 1.7 dB at BER = –Reduced total control signal power

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Acknowledgments This research project is sponsored by the Northumbria University, Newcastle upon Tyne, UK

Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Thank you.