中国物理B ›› 2004, Vol. 13 ›› Issue (7): 1046-1051.doi: 10.1088/1009-1963/13/7/014
李俊庆1, Alireza Bananej1, 陈强1, 李淳飞1, 励强华2
Li Jun-Qing (李俊庆)a, Alireza Bananeja, Li Qiang-Hua (励强华)ab, Chen Qiang (陈强)a, Li Chun-Fei (李淳飞)a
摘要: We propose an all-optical switch of the Mach-Zehnder interferometer type using an active nonlinear ring resonator and analyse the significance of the parameter A, a product of gain and total loss, for performing an ideal 1 by 2 switch. We found that in the range of 1-κ≤A≤\sqrt{1-κ}, the increment of A can compensate the losses inside the ring, therefore increase the finesse of the ring and enhance the nonlinearity contribution to reduce the switching power threshold effectively. We also emphasize the importance of the initial switching point and discuss the feasibility of utilizing a high-nonlinear fibre in the ring.
中图分类号: (Optical bistability, multistability, and switching, including local field effects)