Nonlinear-fiber-grating-pair based low-power all-optical switches

2012 ◽  
Author(s):  
Chunfei Li
Keyword(s):  
Low Power ◽  
Optical Switches ◽  
Fiber Grating ◽  
All Optical ◽  
Nonlinear Fiber ◽  
Grating Pair

LOW-POWER ALL-OPTICAL SWITCHING IN A NONLINEAR M–Z INTERFEROMETER MADE FROM A SINGLE-NONLINEAR-FIBER-CONNECTED LPFG PAIR

2010 ◽  
Vol 19 (03) ◽  
pp. 415-425 ◽  
Author(s):  
BING ZHANG ◽  
WENCHENG XU ◽  
CHUNFEI LI
Keyword(s):  
Optical Switching ◽  
Optical Switch ◽  
Experimental Result ◽  
Pump Light ◽  
Fiber Grating ◽  
Switching Power ◽  
All Optical ◽  
Nonlinear Fiber ◽  
Period Fiber Grating ◽  
All Optical Switch

A new M–Z interferometer all-optical switch (AOS) consisting of a single nonlinear fiber and a linear long-period fiber grating (LPFG) pair is investigated. The switching principle is based on shifting the transmission spectrum over half of the subspectrum width by the pump light. In this paper, two types of such devices are simulated. The first one concerns use of the usual silica fiber based on the Kerr effect, the switching power of which is 471 W, consisting of the experimental result3; the second one concerns the use of an erbium-doped fiber (EDF) based on the resonant nonlinearity, the switching power of which is reduced by less than 25 mW. The transmissions of the AOS in the EDF-LPFG pair for different parameters of LPFG are also discussed.

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
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