Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Crosstalk suppression in an Crosstalk suppression in an all-optical symmetric Mach- all-optical symmetric Mach- Zehnder (SMZ) switch employing Zehnder (SMZ) switch employing un-equal control pulses 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. 10-12, 2005, Shiraz, Iran
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Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran Crosstalk suppression in an all-optical symmetric Mach-Zehnder (SMZ) switch employing un-equal control pulses.
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Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran
Crosstalk suppression in an all-optical Crosstalk suppression in an all-optical symmetric Mach-Zehnder (SMZ) symmetric Mach-Zehnder (SMZ)
switch employing un-equal control switch employing un-equal control pulsespulses
Hoa Le Minh, Fary Z Ghassemlooy and Wai Pang Ng
Optical Communications Research GroupNorthumbria Communications Research Lab
Northumbria University, U.K.
International Symposium on Telecommunications, Sep. 10-12, 2005, Shiraz, Iran
Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran
ContentsContents
• Introduction
• All-optical Switches
• Symmetric Mach Zehnder Switch (SMZ)
• Simulation Results
• Conclusions
Prof. Z. Ghassemlooy, IST2005, Shiraz, Iran
IntroductionIntroduction
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 non-linearity 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)