中国激光, 2010, 37 (9): 2400, 网络出版: 2010-08-19
透射式SESAM实现Nd:YAG连续波锁模皮秒脉冲激光
Passively CW Mode-Locked Nd:YAG Picosecond Laser with a Partially Reflective Semiconductor Saturable-Absorber Mirror
激光技术 半导体可饱和吸收镜 连续锁模 皮秒脉冲 Nd:YAG激光器 laser technique semiconducor saturable-absorber mirror mode locking ps-pulse Nd:YAG laser
摘要
使用透射式半导体可饱和吸收镜(SESAM),实现了光纤耦合半导体激光抽运Nd:YAG晶体的连续波锁模运转。根据ABCD矩阵传输理论,对激光器谐振腔的像散、稳定性与腔参数的关系进行了理论计算。在此基础上,设计了Z型折叠激光谐振腔,获得了稳定的1064 nm皮秒锁模激光输出。当抽运功率为7.7 W时,最大输出功率为372 mW。重复频率为54 MHz。经测量此时锁模脉冲宽度为8.9 ps。
Abstract
A passively mode-locked Nd:YAG laser with a partially reflective semiconductor saturable-absorber mirror is reported.According to the well known ABCD matrix theory,the astigmatism and the stability in the cavity of the laser are theoretically analyzed.Stable continuous-wave mode locked pulses are achieved with a Z-type resonator.The average output power of 372 mW is obtained with the incident pump power of 7.7 W.The pulse duration is measured to be 8.9 ps with a repetition rate of 54 MHz at the central wavelength of 1064 nm.
张海鹍, 徐金龙, 黄海涛, 杨克建, 张百涛, 刘善德, 何京良. 透射式SESAM实现Nd:YAG连续波锁模皮秒脉冲激光[J]. 中国激光, 2010, 37(9): 2400. Zhang Haikun, Xu Jinlong, Huang Haitao, Yang Kejian, Zhang Baitao, Liu Shande, He Jingliang. Passively CW Mode-Locked Nd:YAG Picosecond Laser with a Partially Reflective Semiconductor Saturable-Absorber Mirror[J]. Chinese Journal of Lasers, 2010, 37(9): 2400.