有理数谐波锁模掺铒光纤环形激光器  

A 1.4￣6 GHz Erbium Doped Fiber Laser Using the Rationa l Harmonic Mode locking Technique

作　　者：王林[1] 于晋龙[1] 马晓红 杨恩泽[1] 张以谟[1] 黄超 李世忱[1] 

机构地区：[1]天津大学国家教育部光电子信息工程开放实验室

出　　处：《中国激光》1999年第2期109-112,共4页Chinese Journal of Lasers

摘　　要：在主动谐波锁模光纤环形激光器实验中获得数倍于调制频率ｆｍ的高重复率脉冲序列，其中ｆｐ＝２ｆｍ的输出脉冲序列极为稳定，所得的最高锁模脉冲重复频率ｆｐ＝４ｆｍ≈６ＧＨｚ。实验证实了一种被称之为有理数谐波锁模（ＲＨＭＬ—ＲａｔｉｏｎａｌＨａｒｍｏｎｉｃＭｏｄｅ－ｌｏｃｋｉｎｇ）新技术在较低的调制频率和极简单的腔构条件下也同样成立。实验观察到ＲＨＭＬ激光器允许失谐范围不小于±２ｋＨｚ，失谐比大于１０－６。We demonstrate rational harmonic mode locking (RHML) in a very simple cavity Er fiber ring laser. Using RHML the authors succeeded in otbaining the optical pulses at a repetition rate (f m) which is multiples of the RF drive frequency (f m ≈1.4 GHz) with a detuning ratio of >10 -6 . The generation of the maximum frequency was about 6 GHz and the stable rational harmonic mode locking occurs only at f b=2f m. The experiment shows that the RHML technique is feasible in a short and very simple cavity Er fiber laser.

关 键 词：有理数谐波锁模 掺饵光纤激光器 微失谐调制 

分 类 号：TN248.35[电子电信—物理电子学]