基于反馈控制的全光时钟分频器  

All-optical Clock Divider Based on Feedback Control

作　　者：马闯[1] 江阳[1] 单媛媛[1] 李红霞[1] 梁建惠[1] 白光富[1] 

机构地区：[1]贵州大学理学院,贵州省光电子技术与应用重点实验室,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2013年第2期77-80,共4页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金(61061004);教育部新世纪优秀人才支持计划(NCET-10-0099);贵州省优秀青年科技人才专项基金((2009)09)

摘　　要：本文分析并演示了一种基于半导体光放大器(SOA)的全光时钟分频器结构。通过分析其结构功能并与D触发器比较,得出其工作原理可类比于D触发器的输出反馈控制输入端信号而实现的分频过程,并在时域上进行了说明。实验中从一路20 GHz的光时钟信号出发得到了10 GHz的光分频时钟信号,同时考察了其工作频率和SOA的载流子恢复时间的关系。经实验验证,该系统结构简单,使用方便,性能稳定,具有较好的实用价值。A structure of all-optical clock dividing based on SOA was analyzed and displayed. Analyzing its structure function and comparing it with the structure of D flip-flop, the principle of the divider was found to be similar to the principle of D flip-flop, in which the output signal feedback to control the input signal, and ex-plained it at the time domain. In the experimental demonstration, 10 GHz optical clock was generated from a 20 GHz optical clock signal. Simultaneously, it is found that the operating frequency of the divider is in relation to the recovery velocity of the carrier concentration in the SOA. This system has simple configuration, convenient use, stable performance and preferable use-value.

关 键 词：全光时钟分频 半导体激光放大器 反馈调制 

分 类 号：TN911.74[电子电信—通信与信息系统]