Optimization of 40:10 Gb/s all-optical time division demultiplexer based on semiconductor optical amplifier and delayed-interference

2001 ◽  
Author(s):  
R. Gutiérrez-Castrejón ◽  
M. Dülk ◽  
St. Fischer ◽  
L. Schares ◽  
G. Guekos
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
All Optical ◽  
Optical Time ◽  
Time Division

ULTRAFAST OPTICAL TIME DEMULTIPLEXERS USING SEMICONDUCTOR OPTICAL AMPLIFIERS

1996 ◽  
Vol 07 (01) ◽  
pp. 125-151 ◽  
Author(s):  
K. I. KANG ◽  
I. GLESK ◽  
P. R. PRUCNAL
Keyword(s):  
Optical Properties ◽  
Semiconductor Optical Amplifier ◽  
Nonlinear Optical ◽  
Optical Amplifier ◽  
Nonlinear Optical Properties ◽  
Experimental Results ◽  
Advantages And Disadvantages ◽  
Ultrafast Optical ◽  
All Optical ◽  
Optical Time

The operating principle of the utilization of resonant optical nonlinearities in recently demonstrated ultra-fast all-optical interferometric switching devices is presented. Optimum switching windows expected from these devices are investigated with a simple theoretical analysis. The experimental results of these devices are presented along with the nonlinear optical properties of a semiconductor optical amplifier. The information from the experimental results of the nonlinear optical properties are used to address a problem associated with a saturation of the semiconductor optical amplifier by an incoming ultra-high bit rate data stream. We also discuss the advantages and disadvantages in different operation modes — same or different wavelengths for the control and data signals. Finally, we discuss the relative advantages and disadvantages among these devices.

Frequency Encoded All Optical Tri-state Logic Gates NOT and NAND Using Semiconductor Optical Amplifier Based Interferometric Switches

2020 ◽  
Vol 10 (4) ◽  
pp. 369-380
Author(s):  
K. Maji ◽  
K. Mukherjee ◽  
A. Raja
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Extinction Ratio ◽  
Optical Power ◽  
Logic Gates ◽  
Optical Amplifier ◽  
All Optical ◽  
State Frequency ◽  
Spontaneous Noise ◽  
First Time ◽  
Practical Feasibility

All optical tri-state frequency encoded logic gates NOT and NAND are proposed and numerically investigated using TOAD based interferometric switch for the first time to the best of our knowledge. The optical power spectrum, extinction ratio, contrast ration, and amplified spontaneous noise are calculated to analyze and confirm practical feasibility of the gates. The proposed device works for low switching energy and has high contrast and extinction ratio as indicated in this work.

Polarization rotation-based all-optical AND gate using single semiconductor optical amplifier and implementation of a majority gate

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ashif Raja ◽  
Kousik Mukherjee ◽  
Jitendra Nath Roy
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Extinction Ratio ◽  
Contrast Ratio ◽  
Optical Amplifier ◽  
Majority Voting ◽  
Polarization Rotation ◽  
All Optical ◽  
Eye Opening ◽  
Amplified Spontaneous Emission Noise ◽  
Quality Factor Q

Abstract Semiconductor optical amplifier-based polarization rotation is utilized in designing all-optical AND gate at 100 Gbps. The AND gate shows high extinction ratio (ER ∼ 15 dB), contrast ratio (CR ∼ 18 dB) and quality factor (Q-factor ∼ 16 dB). The effect of the amplified spontaneous emission noise on the performances is also investigated. The AND gate has relative eye opening (REO) varying from 93.52 to 97.1% for 10–30 dB unsaturated gain. Using the AND gate a majority voting gate is designed and analyzed and has Q ∼ 11.7 dB with REO ∼ 91%.

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