Experimental investigation on high‐speed switching characteristics of a novel symmetric Mach–Zehnder all‐optical switch

1994 ◽  
Vol 65 (3) ◽  
pp. 283-285 ◽  
Author(s):  
S. Nakamura ◽  
K. Tajima ◽  
Y. Sugimoto
Keyword(s):  
Experimental Investigation ◽  
High Speed ◽  
Optical Switch ◽  
All Optical ◽  
Switching Characteristics ◽  
All Optical Switch ◽  
High Speed Switching

High-speed switching characteristics of integrated 4×4 InP optical switch array

1989 ◽  
Vol 25 (15) ◽  
pp. 964 ◽  
Author(s):  
Y. Takahashi ◽  
H. Inoue ◽  
T. Kato ◽  
E. Amada
Keyword(s):  
High Speed ◽  
Optical Switch ◽  
Switching Characteristics ◽  
High Speed Switching

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.   

PATTERN EFFECT MITIGATION IN HIGH-SPEED ALL-OPTICAL SWITCH BASED ON CROSS-GAIN MODULATION IN TWO SOAs WITH DIFFERENT BANDGAPS

2010 ◽  
Vol 24 (19) ◽  
pp. 2031-2040
Author(s):  
LI WANG ◽  
MUGUANG WANG ◽  
SHUQIN LOU ◽  
WEI-PING HUANG
Keyword(s):  
High Speed ◽  
Optical Switch ◽  
Gain Modulation ◽  
Absorption Region ◽  
Pattern Effect ◽  
Cross Gain Modulation ◽  
All Optical ◽  
Recovery Dynamics ◽  
All Optical Switch ◽  
Gain Recovery

Two cascaded semiconductor optical amplifiers (SOAs) with different bandgaps are proposed as an all-optical switch based on cross-gain modulation (XGM) to reduce the pattern effect inflicted by a carrier-lifetime-related long-lived gain recovery tail. We numerically investigate the device gain recovery dynamics in such setup excited by 100 Gbit/s pseudorandom return-to-zero control signal at 1520 nm for different probe wavelengths. The preliminary simulation results indicate that the pattern effect in a SOA in which control pulses are localized in gain region can be reduced by a concatenated SOA in which control pulses are situated in the absorption region. This compensation principle is always valid when the bit rate is beyond 100 Gbit/s.

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

DESIGNING OF ALL-OPTICAL TRI-STATE LOGIC SYSTEM WITH THE HELP OF OPTICAL NONLINEAR MATERIAL

2008 ◽  
Vol 17 (03) ◽  
pp. 315-328 ◽  
Author(s):  
TANAY CHATTOPADHYAY ◽  
GOUTAM KUMAR MAITY ◽  
JITENDRA NATH ROY
Keyword(s):  
High Speed ◽  
Optical Switch ◽  
Digital Signal ◽  
Optical Signal ◽  
Nonlinear Material ◽  
Digital Signals ◽  
Photonic Networks ◽  
Optical Nonlinear Material ◽  
All Optical ◽  
Logic Operations

Nonlinear optics has been of increased interest for all-optical signal, data and image processing in high speed photonic networks. The application of multi-valued (nonbinary) digital signals can provide considerable relief in transmission, storage and processing of a large amount of information in digital signal processing. Here, we propose the design of an all-optical system for some basic tri-state logic operations (trinary OR, trinary AND, trinary XOR, Inverter, Truth detector, False detector) which exploits the polarization properties of light. Nonlinear material based optical switch can play an important role. Tri-state logic can play a significant role towards carry and borrow free arithmetic operations. The principles and possibilities of the design of nonlinear material based tri-state logic circuits are proposed and described.

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