具有双损耗调制的稳定调Q和锁模钕钆钒酸盐/磷酸钛氧钾绿光激光器。

Stable Q-switched and mode-locked Nd:GdVO4/KTP green laser with dual-loss-modulation.

作者信息

Zhang Gang, Zhao Shengzhi, Li Guiqiu, Li Dechun, Yang Kejian, Cheng Kang, Zhang Yan

机构信息

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

出版信息

Appl Opt. 2010 Aug 20;49(24):4524-30. doi: 10.1364/AO.49.004524.

DOI:10.1364/AO.49.004524

PMID:20733623

Abstract

A diode-pumped dual-loss-modulated Q-switched and mode-locked (QML) Nd:GdVO(4)/KTP green laser with an acousto-optic modulator (AOM) and GaAs saturable absorber is presented. The experimental results show that the stability and the peak power of the dual-loss-modulated QML Nd:GdVO(4)/KTP green laser are significantly improved. The pulse width of the Q-switched pulse envelope in the dual-loss-modulation QML green laser has a compression of 50% compared with that in the singly passively QML green laser with GaAs. By using a hyperbolic secant square function and considering the Gaussian distribution of the intracavity photon density, the coupled equations for diode-pumped dual-loss-modulated QML Nd:GdVO(4) green laser are given, and the numerical solutions of the equations are in good agreement with the experimental results.

摘要

介绍了一种带有声光调制器（AOM）和砷化镓可饱和吸收体的二极管泵浦双损耗调制调Q锁模（QML）Nd:GdVO₄/KTP绿光激光器。实验结果表明，双损耗调制QML Nd:GdVO₄/KTP绿光激光器的稳定性和峰值功率得到了显著提高。与采用砷化镓的单被动QML绿光激光器相比，双损耗调制QML绿光激光器中调Q脉冲包络的脉宽压缩了50%。通过使用双曲正割平方函数并考虑腔内光子密度的高斯分布，给出了二极管泵浦双损耗调制QML Nd:GdVO₄绿光激光器的耦合方程，方程的数值解与实验结果吻合良好。