量子电子学报, 2006, 23 (1): 0042, 网络出版: 2010-06-07
LD抽运Nd∶YVO41．34μm激光器及其热效应研究
Diode-pumped Nd∶YVO4 1.34 μm laser and its thermal lens effect
激光技术 全固态激光器 1．34 μm激光 热透镜效应 laser techniques all solid-state laser Nd∶YVO4 Nd∶YVO4 1.34 μm laser thermal lens effect
摘要
研究了激光二极管(LD)抽运Nd∶YVO4连续波1．34 μm激光器在不同腔长时的输出特性，通过计算晶体中的振荡光光斑大小随泵浦功率的变化，分析了1．34 μm激光输出的热透镜效应对腔稳定性和激光输出特性的影响，为1．34 μm激光谐振腔的优化设计提供了基本的理论依据。实验中采用简单的平 凹腔结构，泵浦功率为756W时，得到2．39W的连续波1．34 μm激光输出，最大斜效率为36．5%，光－光转换效率为31．7%。
Abstract
The properties of a diode-pumped Nd∶YVO4 continuous-wave laser operating at 1.34 μm with different resonator lengths were studied. The effects of thermal lens on the stability of cavity and the output characteristics were studied by calculating the laser mode size on the front surface of laser crystal. A simple planar-concave cavity was used. The maximum output power of 2.39 W was achieved at incident pump power of 7.56 W,with the maximum slope efficiency of 36.5% and optical conversion efficiency of 31.7%.
彭倩倩, 杨峰, 刘杰, 王云, 范秀伟, 何京良. LD抽运Nd∶YVO41．34μm激光器及其热效应研究[J]. 量子电子学报, 2006, 23(1): 0042. PENG Qian-qian, YANG Feng, LIU Jie, WANG Yun, FAN Xiu-wei, HE Jing-liang. Diode-pumped Nd∶YVO4 1.34 μm laser and its thermal lens effect[J]. Chinese Journal of Quantum Electronics, 2006, 23(1): 0042.
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