【作者】 王晓虹； 李俊庆； 金磊； 李淳飞；

【机构】 哈尔滨工业大学物理系；

【摘要】 本文首先回顾了光学双稳的研究历史,分析了目前的发展现状和应用背景。针对一种由双环组成的全光纤双稳器,对其双稳的形成及特性进行了理论分析和研究。首先由耦合器传输矩阵和光场的传输关系得到了此结构在各端口的输出特性。分析了该结构存在非线性输出和反馈两种机制,确定了实现双稳态的可能性。用数值方法分别模拟了双稳回线。研究了不同参数对双稳特性的影响,展示了参数优化的规律。指明了基于该结构的具有全非线性的光学双稳器的一个新的研究方向。更多还原

【Abstract】 In this paper, the research history of optical bistability is reviewed firstly and the current research situation and application background are analyzed. The procedure of forming of bistability and its performance are theoretically investigated for all - fiber optical bistable device with two coupled ring structure. From coupler’s transmission matrices and links for optical field, the output properties at various ports of this structure are obtained. The possibility of realizing optical bistability is confirmed by analyzing the nonlinear output and feedback mechanisms existing in the structure. The bistable loops are simulated numerically. The law for optimization of parameters is displayed by studying the influence of parameters on optical bistable performance. A new research direction on all -nonlinear OBD based on the structure is pointed out.更多还原