文档介绍：Journal of Harbin Institute of Technology ( New Series) , Vol. 11, No. 6, 2004
Low power all optical switches
Alireza Bananej , LI Chun-fei
李淳飞
( Institute of Modern Optics, Dept. of Physics, Harbin Institute of Technology, Harbin 150001, China, E-mail: cfli@ hit. edu. cn)
Abstract: In this paper, we propose a new design of all fiber optical switches by using a high finesse ring resonator
( RR) side coupled Mach- Zehnder interferometer. We will show that by compensating the total loss in the RR the
switching power can be decreased greatly and by loss, compensating the bistability effect in RR can be cancelled and
the switching performance can be improved. In addition, we will show that by using Erbium doped fiber for fabricating
the RR we can obtain switching power threshold in mW range.
Key words: all optical switches; Mach- Zehnder interferometer; ring resonator; finesse; erbium doped fiber
CLC number: TN2
Document code: A
Article ID: 1005-9113( 2004) 06- 0640-04
As we know, al-l optical switches (AOSs) are impor- coupled M-Z interferometer. An optical gain element is
tant for future optical communication and supercomputers. inserted in the ring resonator.
In re