All Optical Switch based on Nonlinear Directional Coupler with Saturable Absorber

2007 ◽  
Author(s):  
Yingyan Huang ◽  
Seng-Tiong Ho
Keyword(s):  
Saturable Absorber ◽  
Directional Coupler ◽  
Optical Switch ◽  
All Optical ◽  
Nonlinear Directional Coupler ◽  
All Optical Switch

The cascaded amplifier and saturable absorber (CASA) all-optical switch

2001 ◽  
Author(s):  
E. Hilliger ◽  
J. Berger ◽  
H. G. Weber ◽  
K. Yvind ◽  
P. M. W. Skovgaard ◽  
...  
Keyword(s):  
Saturable Absorber ◽  
Optical Switch ◽  
All Optical ◽  
All Optical Switch

Performance evaluation of GaAs photonic crystal based directional coupler all optical switch

2018 ◽  
Vol 7 (3.29) ◽  
pp. 220
Author(s):  
Sivasindhu M ◽  
P Samundiswary
Keyword(s):  
Performance Evaluation ◽  
Photonic Crystal ◽  
Integrated Circuits ◽  
High Speed ◽  
Directional Coupler ◽  
Optical Switch ◽  
Optical Filters ◽  
Optical Signals ◽  
All Optical ◽  
All Optical Switch

In future, the telecommunication systems will be totally based upon the photonic integrated circuits and components for the transmission of optical signals. Since optical signals offer high speed, less delay and higher efficiency. This introduces a new research area for photonic crystal based optical components like optical switch, multiplexer, optical filters etc. Among these devices, the optical switch draws more attention due to its primary switching operation. Hence, this paper deals with the modified design structure of GaAs photonic crystal based directional coupler all optical switch which operates at the wavelength of 1300nm. Further the switching performance evaluation of this device is made for both electro optic effect and non-linear optical effect. The design and simulation of the optical switch is done through Comsol Multiphysics software.   

Compact and efficient PC-based directional coupler all-optical switch

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sivasindhu Masilamani ◽  
Punniakodi Samundiswary
Keyword(s):  
Photonic Crystal ◽  
Response Time ◽  
Insertion Loss ◽  
Directional Coupler ◽  
Performance Metrics ◽  
Optical Switch ◽  
Extinction Ratio ◽  
Fast Response ◽  
All Optical ◽  
All Optical Switch

AbstractRecently, the photonic crystal–based optical components and devices have attracted many researchers’ attention because of its nanoscale size which makes it suitable for the photonic integrated applications. Hence, the design of all-optical switch based on photonic crystal structure have been investigated in the past few decades to meet the requirement of ultracompact size with optimized performances such as fast response time, high extinction ratio with low insertion loss. Here, the design of directional coupler–based all-optical switch operating at the wavelength of 1550 nm is proposed with new design values. The resonant operating wavelength of the switch is identified with the help of finite element method. Then, the cross-state switching operation is analysed with the help of finite-difference time-domain method by applying a nonlinear optical Kerr effect switching mechanism. The important performance metrics of the proposed design such as insertion loss, extinction ratio, directivity and the response time are obtained as −0.008 , 26.98, 20.44 dB and 0.13ps, respectively. The total footprint of the proposed optical switch is approximately 128 µm2.

Switching Operation of GaInAs/InP Multiple-Quantum-Well Directional-Coupler-Type All-Optical Switch

1997 ◽  
Vol 36 (Part 2, No. 2A) ◽  
pp. L110-L113
Author(s):  
Toshiyuki Takizawa ◽  
Akira Uchino ◽  
Takehiro Shimizu ◽  
Yasushi Takeuchi ◽  
Shigehisa Arai
Keyword(s):  
Quantum Well ◽  
Directional Coupler ◽  
Optical Switch ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Switching Operation ◽  
All Optical ◽  
All Optical Switch

Proposal of Semiconductor Directional-Coupler-Type All-Optical Switch with Tapered-Waveguide Structures

1997 ◽  
Vol 36 (Part 1, No. 3A) ◽  
pp. 1060-1067
Author(s):  
Toshiyuki Takizawa ◽  
Akira Uchino ◽  
Shigehisa Arai
Keyword(s):  
Directional Coupler ◽  
Optical Switch ◽  
Tapered Waveguide ◽  
All Optical ◽  
All Optical Switch

Recovery time for a silicon waveguide all-optical switch

1988 ◽  
Vol 24 (6) ◽  
pp. 303 ◽  
Author(s):  
P.D. Colbourne ◽  
P.E. Jessop
Keyword(s):  
Recovery Time ◽  
Optical Switch ◽  
Silicon Waveguide ◽  
All Optical ◽  
All Optical Switch

A robust and inexpensive all optical switch with chiral nematic liquid crystal

2021 ◽  
Vol 119 ◽  
pp. 111306
Author(s):  
Hossein mehrzad ◽  
Ezeddin Mohajerani ◽  
Mohammad Mohammadimasoudi ◽  
Kristiaan Neyts
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Optical Switch ◽  
Chiral Nematic ◽  
All Optical ◽  
All Optical Switch

Demultiplexing of 168-Gb/s data pulses with a hybrid-integrated symmetric Mach-Zehnder all-optical switch

2000 ◽  
Vol 12 (4) ◽  
pp. 425-427 ◽  
Author(s):  
S. Nakamura ◽  
Y. Ueno ◽  
K. Tajima ◽  
J. Sasaki ◽  
T. Sugimoto ◽  
...  
Keyword(s):  
Optical Switch ◽  
All Optical ◽  
All Optical Switch
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