scholarly journals Passive all-optical polarization switch, binary logic gates, and digital processor

2011 ◽  
Vol 19 (21) ◽  
pp. 20332 ◽  
Author(s):  
Y. A. Zaghloul ◽  
A. R. M. Zaghloul ◽  
A. Adibi
Keyword(s):  
Logic Gates ◽  
Optical Polarization ◽  
Binary Logic ◽  
Polarization Switch ◽  
All Optical ◽  
Digital Processor

All-Optical Switching and Logic-Gates Design Using Mode (Polarization)-Conversion in Micro-Ring Resonator

2019 ◽  
pp. 277-302 ◽  
Author(s):  
Jayanta Kumar Rakshit ◽  
Gaurav Kumar Bharti
Keyword(s):  
Optical Switching ◽  
Ring Resonator ◽  
Logic Gates ◽  
Silicon On Insulator ◽  
Pump Light ◽  
Polarization Conversion ◽  
Optical Polarization ◽  
Optical Logic ◽  
Polarization Switch ◽  
All Optical

The realization of all-optical polarization switch and all-optical logic gates based on polarization-conversion on single silicon micro-ring resonator (MRR) is demonstrated. By adjusting the mode state of the input source as well as the pump light, the all-optical polarization switch, and hence, all-optical NOT, OR/NOR. AND-NAND logic gates are realized. The design is ultra-compact, ultrafast, and less optical power is required for all-optical polarization-conversion-based switch and logic gates, respectively. The MRR also shows outstanding performance as its Q (quality) factor is very high. The design is robust, simple, stable, easy-to-fabricate, and silicon-on-insulator (SOI) compatible. The structure is compatible for interconnects and capable for integrating in electronics as well as in plasmonics circuits.

Mechanisms of ultrafast coherent all-optical polarization switch in semiconductors

2008 ◽  
Author(s):  
Wenfeng Wang ◽  
Min Zhai ◽  
Jun Zhang ◽  
Yong Chen ◽  
Yongchao Gan
Keyword(s):  
Optical Polarization ◽  
Polarization Switch ◽  
All Optical

All-optical polarization switch in a quadratic nonlinear photonic quasicrystal

2009 ◽  
Vol 94 (9) ◽  
pp. 091108 ◽  
Author(s):  
Ayelet Ganany-Padowicz ◽  
Irit Juwiler ◽  
Ofer Gayer ◽  
Alon Bahabad ◽  
Ady Arie
Keyword(s):  
Optical Polarization ◽  
Polarization Switch ◽  
All Optical ◽  
Photonic Quasicrystal

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.

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