采用砷化镓可饱和吸收体的被动调Q Yb3+：NaY(WO4)2 激光器。

Passively Q-switched Yb3+:NaY(WO4)2 laser with GaAs saturable absorber.

作者信息

Lan Ruijun, Pan Lei, Utkin Ilya, Ren Quan, Zhang Huaijin, Wang Zhengping, Fedosejevs Robert

机构信息

School of Information Science and Engineering, Shandong University, Jinan, 250100, China.

出版信息

Opt Express. 2010 Mar 1;18(5):4000-5. doi: 10.1364/OE.18.004000.

DOI:10.1364/OE.18.004000

PMID:20389414

Abstract

Passively Q-switched Yb(3+):NaY(WO(4))(2) lasers have been demonstrated using a GaAs saturable absorber. Under continuous wave pump mode, significant pulse shortening effects have been observed at high pump powers. At a pump power of 12 W, stable Q-switched output has been obtained with a pulse duration of 5 ns, pulse repetition rate of 83 kHz and a pulse to pulse timing jitter of less than 2%. With pulsed pump mode, much longer pulse duration and reduced pulse stability have been observed. It is proposed that the heating of GaAs may play an important role in the Q-switched operations under CW pump conditions.

摘要

已证明使用砷化镓可饱和吸收体的被动调Q Yb(3+):NaY(WO(4))(2)激光器。在连续波泵浦模式下，在高泵浦功率时观察到显著的脉冲缩短效应。在12瓦的泵浦功率下，获得了稳定的调Q输出，脉冲持续时间为5纳秒，脉冲重复率为83千赫兹，脉冲间定时抖动小于2%。在脉冲泵浦模式下，观察到脉冲持续时间长得多且脉冲稳定性降低。有人提出，在连续波泵浦条件下，砷化镓的加热可能在调Q操作中起重要作用。