基于SOA的环形腔激光器在全光信号处理中的应用  

Applications of SOA Based on Fiber Ring Laser in All Optical Signal Processing

作　　者：吴重庆[1] 赵爽[1] 孙振超[1] 李政勇[1] 

机构地区：[1]北京交通大学光信息科学与技术研究所,教育部发光与光信息技术重点实验室,北京100044

出　　处：《光学与光电技术》2012年第5期6-13,共8页Optics & Optoelectronic Technology

基　　金：国家自然基金(60877057;60907027;61077048)资助项目

摘　　要：半导体光放大器(SOA)因其具有良好的光-光互作用特性,包括交叉增益调制、交叉相位调制、交叉偏振调制以及四波混频等,在全光信号处理技术中已经获得了广泛的应用。利用SOA与光纤反馈可构成环形腔激光器S-FRL。在S-FRL中将SOA的光-光互作用特性与反馈条件相结合,可以改变S-FRL的起振、抑制、选频等多种状态,从而构成不同功能的全光信号处理器件。在分析S-FRL激光振荡原理的基础上,提出了双环耦合的S-FRL,并以此为基础构成一种双环耦合的双稳态触发器,进而构成一种同步脉冲展宽器;还提出了一种级联的S-FRL,由此构成一种基于负逻辑的全光判决器。Because of its good light-light interaction features, including cross gain modulation, cross phase modulation, cross-polarization modulation and four wave mixing, etc, semiconductor optical amplifier（SOA） has been widely used in all- optical signal processing technologies. A new type of fiber ring laser S-FRL could be constructed by using a SOA with opti cal fiber feedback. In the S-FPL, combining light-light interaction of SOA with the feedback conditions, many states of S- FRL can be adjusted, such as start-up and suppression of vibration of S-FRL, selecting of frequencies, and so on. Thus many all-optical signal processing devices could be construct. In this paper, based on the analysis of laser oscillation of the S- FRL, a dual ring coupled S-FRL is proposed, constructing a new type bistable flip flop, and thus a synchronous pulse broadening device is proposed. A cascade of S-FRL is presented, which constitutes the optical decision device based on the negative logic.

关 键 词：半导体光放大器 环形腔激光器 全光信号处理 双稳态触发器 同步脉冲展宽器 全光判决器 

分 类 号：TN248[电子电信—物理电子学]