拍频自反馈锁模光纤环形激光器  

Beat Signal Feedback Mode locked Fiber Ring Laser

作　　者：李玉华[1] 娄采云[1] 刘军 高以智[1] 

机构地区：[1]清华大学电子工程系

出　　处：《中国激光》1998年第3期213-216,共4页Chinese Journal of Lasers

摘　　要：报道一种由光纤环形激光器的拍频信号中提取高重复率正弦电信号，并以此信号调制腔内强度调制器，实现调制频率与腔长自适应的主动锁模方法。采用此方法获得重复率为２．５ＧＨｚ，脉宽为１１ｐｓ的变换极限超短光脉冲。An active modelocking technology of fiber ring laser by beat signal feedback is reported. The modulation frequency is self adaptable with the cavity length when an amplitude modulator is driven by the high repetition beat signal extracted from the cavity. The transform limited ultra short pulses of 11 ps with a 2.5 GHz repetition rate have been obtained.

关 键 词：光纤环形激光器 主动锁模 锁模激光器 

分 类 号：TN248.35[电子电信—物理电子学]