Low-Power Silica-Based All-Optical Switches with Pumped Active Ring Resonator

2005 ◽  
Author(s):  
Chunfei Li
Keyword(s):  
Low Power ◽  
Ring Resonator ◽  
Optical Switches ◽  
All Optical ◽  
Active Ring

FINESSE CONTROLLABLE ACTIVE RING-RESONATOR-COUPLED M-Z INTERFEROMETER OPTICAL SWITCHES

2004 ◽  
Vol 13 (01) ◽  
pp. 37-44 ◽  
Author(s):  
CHUNFEI LI ◽  
ALIREZA BANANEJ ◽  
JUNQING LI ◽  
GUANGMING XU
Keyword(s):  
Ring Resonator ◽  
Switching Time ◽  
Optical Amplifier ◽  
Optical Switches ◽  
Switching Power ◽  
Active Ring ◽  
Approach Zero ◽  
Switching Devices

In order to get the lowest switching power in the ring-resonator-coupled M-Z interferometer switching devices, the loss in the ring resonator has to approach zero. However, in practice, the loss in the ring and coupler cannot be neglected, as it might make the switch unworkable. Therefore, we suggest inserting a gain-controllable optical amplifier into the ring to compensate for the losses and enhance the ring finesse to reduce the switching power. By adjusting the gain, a tradeoff between the switching power and the switching time can be obtained.

Realization of ultrafast and low power all-optical switches using intersubband transitions in a novel InGaAs/AlAs/AlAsSb quantum well structure

2003 ◽  
Author(s):  
Teruo Mozume ◽  
Jun-ichi Kasai ◽  
Nikolai Georgiev ◽  
Takasi Simoyama ◽  
Achanta V. Gopal ◽  
...  
Keyword(s):  
Quantum Well ◽  
Low Power ◽  
Optical Switches ◽  
Intersubband Transitions ◽  
Quantum Well Structure ◽  
All Optical

All optical NAND/NOR and majority gates using nonlinear photonic crystal ring resonator

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hassan Mamnoon-Sofiani ◽  
Sahel Javahernia
Keyword(s):  
Photonic Crystal ◽  
Ring Resonator ◽  
Logic Gates ◽  
Building Blocks ◽  
Optical Data ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Nonlinear Photonic Crystal ◽  
All Optical ◽  
Photonic Crystal Ring Resonator

Abstract All optical logic gates are building blocks for all optical data processors. One way of designing optical logic gates is using threshold switching which can be realized by combining an optical resonator with nonlinear Kerr effect. In this paper we showed that a novel structure consisting of nonlinear photonic crystal ring resonator which can be used for realizing optical NAND/NOR and majority gates. The delay time of the proposed NAND/NOR and majority gates are 2.5 ps and 1.5 ps respectively. Finite difference time domain and plane wave expansion methods were used for simulating the proposed optical logic gates. The total footprint of the proposed structure is about 988 μm2.

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