具有高峰值功率和高脉冲能量的被动调Q二极管泵浦连续波Nd:YAG-Cr(4+):YAG激光器

Passively Q-Switched Diode-Pumped Continuous-Wave Nd:YAG-Cr(4+):YAG Laser with High Peak Power and High Pulse Energy.

作者信息

Song J, Li C, Kim N S, Ueda K

出版信息

Appl Opt. 2000 Sep 20;39(27):4954-8. doi: 10.1364/ao.39.004954.

DOI:10.1364/ao.39.004954

Abstract

A high peak power and high pulse energy passively Q-switched diode-pumped cw Nd:YAG laser at 1.064-mum wavelength has been demonstrated with Cr(4+):YAG crystal as the saturable absorber. The average output power of 7-12 W and pulse duration of 100-250 ns was obtained with kilohertz repetition rates. The highest peak power and pulse energy obtained were 30 kW and 3.4 mJ, respectively. All the output resulted from the TEM(00) mode with M(2) < 1.1. The thermal lensing effect of the saturable absorber was investigated, demonstrating that it played an important role in optimization of the output.

摘要

利用Cr(4+):YAG晶体作为饱和吸收体，演示了一种波长为1.064μm的高峰值功率和高脉冲能量被动调Q二极管泵浦连续波Nd:YAG激光器。在千赫兹重复频率下，获得了7-12W的平均输出功率和100-250ns的脉冲持续时间。获得的最高峰值功率和脉冲能量分别为30kW和3.4mJ。所有输出均来自TEM(00)模，M(2)<1.1。研究了饱和吸收体的热透镜效应，表明其在输出优化中起重要作用。