中国激光, 2007, 34 (1): 41, 网络出版: 2007-01-22
激光二极管抽运Nd:YVO4/YVO4复合晶体激光器
Laser Diode-Pumped Nd:YVO4/YVO4Composite Crystal Laser
激光器 热键合 激光二极管端面抽运 复合晶体 Z型折叠腔 lasers thermal bonding laser diode-end-pumped composite crystal Z-shaped folded cavity
摘要
在高功率激光二极管(LD)抽运的情况下, 对比分析了Nd:YVO4/YVO4复合晶体和Nd:YVO4单一晶体的激光特性。实验证明, 复合晶体能够有效地降低晶体内的温度梯度, 减小由端面变形带来的热透镜效应, 获得比单一晶体高出许多的输出功率。采用Z型折叠腔, 研究了Nd:YVO4/YVO4复合晶体KTP倍频特性, 当抽运功率为17 W时, 获得了6.23 W的绿光输出, 抽运光到绿光的转换效率高达37%。
Abstract
The optical properties of Nd:YVO4/YVO4 composite crystal and Nd:YVO4 single crystal were studied contrastedly in the high power laser diode-pumped solid-state lasers. It was demonstrated that the composite crystal can effectively reduce the temperature gradient of crystal, relieve the thermal lens effect and get higher output power. The frequency-doubling property of Nd:YVO4/YVO4 composite crystal with KTP was studied in a “Z-shaped” folded cavity. With the incident pump power of 17 W, 6.23 W green light was achieved with an optical conversion efficiency of 37%.
李晓敏, 卓壮, 李涛, 杨宏志, 李健. 激光二极管抽运Nd:YVO4/YVO4复合晶体激光器[J]. 中国激光, 2007, 34(1): 41. 李晓敏, 卓壮, 李涛, 杨宏志, 李健. Laser Diode-Pumped Nd:YVO4/YVO4Composite Crystal Laser[J]. Chinese Journal of Lasers, 2007, 34(1): 41.
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