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Full-Text Articles in Engineering
Gaas Based Long-Wavelength Microring Resonator Optical Switches Utilising Bias Assisted Carrier-Injection Induced Refractive Index Change, S Ravindran, A Datta, Kamal Alameh, Yong Tak Lee
Gaas Based Long-Wavelength Microring Resonator Optical Switches Utilising Bias Assisted Carrier-Injection Induced Refractive Index Change, S Ravindran, A Datta, Kamal Alameh, Yong Tak Lee
Research outputs 2012
We propose and analyse a GaAs-based optical switch having a ring resonator configuration which can switch optical telecommunication signals over the 1300 nm and 1500 nm bands, using bias assisted carrier injection as the switching mechanism. The switching is achieved through variation in the refractive index of the ring resonator produced by changing the injected carrier density through the application of bias voltage. Detail analysis of the switching characteristics reveals that the amount of switching depends on the refractive index change, which indeed is a strong function of injected carrier density and applied bias voltage. An isolation of 25 dB …
A 1x4 Adaptive Optical Splitter Based On Opto-Vlsi Processor, Haithem Mustafa, Feng Xiao, Kamal Alameh
A 1x4 Adaptive Optical Splitter Based On Opto-Vlsi Processor, Haithem Mustafa, Feng Xiao, Kamal Alameh
Research outputs 2011
We propose and experimentally demonstrate a novel high resolution 1×4 adaptive optical power splitter based on the use of an Opto-VLSI processor and a 4-f imaging system with an optimized optical beam waist profile. By uploading optimized multicasting phase holograms onto the software-driven Opto-VLSI processor, an input optical signal is dynamically split into different output fiber ports with user-defined splitting ratios. Experimental results showing dynamic optical splitting over a wavelength range exceeding 50 nm are presented.
A 1x2 Adaptive Optical Splitter Based On Opto-Vlsi Processor, Haithem Mustafa, Feng Xiao, Kamal Alameh
A 1x2 Adaptive Optical Splitter Based On Opto-Vlsi Processor, Haithem Mustafa, Feng Xiao, Kamal Alameh
Research outputs pre 2011
A 1×2 adaptive optical splitter structure is proposed and experimentally demonstrated. The 1×2 adaptive optical splitter structure is based on Opto-VLSI in conjunction with 4-f imaging system. An Opto-VLSI processor is software driven and capable of splitting an optical beam into different directions when a multicasting phase hologram is uploaded. An input optical signal launched into an input optical fiber port is split and coupled into two output optical fiber ports with arbitrary splitting ratios over a wavelength range exceeding 50 nm.
Adaptive Optical Splitter Employing An Opto-Vlsi Processor And A 4-F Imaging System, Haithem Ab Mustafa, Feng Xiao, Kamal Alameh
Adaptive Optical Splitter Employing An Opto-Vlsi Processor And A 4-F Imaging System, Haithem Ab Mustafa, Feng Xiao, Kamal Alameh
Research outputs pre 2011
A novel adaptive optical splitter structure employing an Opto-VLSI processor and 4-f imaging system is proposed and experimentally demonstrated. By driving the Opto-VLSI processor with computer generated multicasting phase holograms, an input optical signal launched into an input optical fiber port can be split and coupled into many output optical fiber ports with arbitrary splitting ratios. A proof-of-principle 1 2 adaptive optical splitter structure driven by optimized multicasting phase holograms uploaded onto the Opto-VLSI processor is developed, demonstrating an arbitrary splitting ratio over a wavelength range exceeding 50 nm.