光通信技术2013，Vol.37Issue(3)：1-4,4.
DFB激光器的高稳定宽带锁频方案设计和实现
Design and implementation of a frequency-locked scheme for two distributed feedback laser diodes with high stability bandwidth
摘要
Abstract
This paper proposes a scheme to lock the frequency difference between two distributed feedback (DFB)laser diodes with high stability and wide bandwidth.The locked wide bandwidth with high stability ranges from 50MHz to 11GHz.An error frequency is first evaluated by measuring the net difference of the targeted frequency and the beating frequency between two lasers.Second,based on the proportional-integral-derivative (PID) control algorithm,the feedback control of temperature and current of one laser is implemented to coarsely and finely tune the beat frequency between two lasers as well as the net difference,respectively.The experimental result indicates that the stability of the locked frequency difference within the wide bandwidth is below 5MHz RMS under a two-hour measurement,which approaches the theoretical limitation.关键词
锁频/激光器驱动电路/PID算法/LabVIEWKey words
frequency-lock/LD driver/PID algorithm/LabVIEW分类
信息技术与安全科学引用本文复制引用
李乐逊,邹卫文,吴龟灵,陈建平..DFB激光器的高稳定宽带锁频方案设计和实现[J].光通信技术,2013,37(3):1-4,4.基金项目
国家973项目(2011CB301700)资助 （2011CB301700）
国家自然科学基金项目(61007052,61071011,61107041,61127016)资助 （61007052,61071011,61107041,61127016）
上海市学科带头人计划(12XD1406400)资助 （12XD1406400）
上海市浦江人才计划(12PJ1405600)资助 （12PJ1405600）
上海交通大学SMC-晨星人才计划资助. （）
