摘要
给出了光谱、时间、空间分辨的激光二极管(LD)抽运动力学模型,包括LD阵列输出的波长啁啾效应、输出功率随时间的瞬态变化,重点研究了不同吸收带宽的激光介质对大功率LD阵列输出的光谱选择吸收特性.基于该模型,分析了三种典型激光增益介质Yb:YAG,Yb:S-FAP,Nd:YAG在脉冲储能运转方式下的抽运激发性能.优化了不同增益介质所需的LD阵列的初始中心波长,并对三种介质对LD波长啁啾效应的敏感性进行了详细研究.
A spectrum-, temporal- and spatial-resolved physical model of LD pumping dynamics is set up, which includes the wavelength chirping and transient behavior of the power output of LD arrays. Based on this model, we investigate in detail the spectrum selective absorption characteristics from LD output by laser materials with different absorption bandwidths. Also the pumping excitation performances for typical three kinds of laser crystals, Yb： YAG, Yb：S-FAP, and Nd： YAG, are investigated specifically for the pulsed-energy-storage operation mode. Finally, we have optimized the initial central wavelength of LD arrays for the above three crystals and compared their sensitivity to the wavelength chirping of LD arrays.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第5期2559-2569,共11页
Acta Physica Sinica
关键词
激光二极管阵列
波长啁啾
抽运动力学
激光材料
laser-diode arrays, wavelength chirping, pumping dynamics, laser materials
