半导体激光双稳运转中的相变  

Phase transition in operation of a semiconductor OBD

作　　者：张远程[1] 宋骞[1] 何绍伟 

机构地区：[1]武汉大学,430072

出　　处：《中国激光》1992年第9期682-686,共5页Chinese Journal of Lasers

基　　金：湖北省科委资助项目

摘　　要：利用Landau相变理论对光纤耦合输出反馈泵浦半导体激光双稳系统运转中的非平衡相变进行了理论分析。指出,反馈参量的增加是系统由二级相变向一级相变转化的条件。由此导出了系统三种工作模式及其用于光信号放大和处理的参数,与实验一致。In accordance with Landau's theory on phase transition, a theoretical analysis has been made for the nonequilibrium phase transition in the operation of a fibre-coupled semiconductor OBI) with feedback pumping. It is shown that the feedback paiameter is the transitional condition from the second-order phase transition to the first-order phase transition. Parameters of three operation modes and signal amplification and processing have been reduced. respectively. The theory agrees with the author's experimental results.

关 键 词：半导体 激光 双稳动转 相变 

分 类 号：TN248.4[电子电信—物理电子学]