激光二极管泵浦高效Nd:YVO4激光器特性研究脉冲倍频稳频Nd:YAG环形激光器

报道了激光二极管泵浦高效Nd:YVO4激光器输出功率及波长特性的研究。基频光输出230 mW, 光-光转换效率为45%。对激光输出波长和泵浦功率的关系进行了研究, 发现激光器的输出波长随泵浦功率的平均变化率约为1.05×10 -3 nm/mW。利用KTP腔内倍频获得29.8 mW的绿光输出, 光-光转换效率为12.4%。在脉冲稳频Nd:YAG激光器的基础上, 采用辅助的长脉冲网络泵浦和短而强的主脉冲泵浦相结合, 以F-P共焦腔为参考频标, 通过同步搜索补偿稳频技术和截波技术.获得中心频率稳定、频漂小于10 MHz、脉宽100 μs、峰值功率>100 W的无尖峰结构的0.53 μm稳频绿光输出。

Performance of a Highly Efficient Nd:YVO4Diode-laser End-pumped LaserA Frequency-Stabilized and-doubled Pulsed Ring Nd:YAG Laser

The characteristics of a LD pumped highly efficient Nd:YVO4 laser were presented. The output power of 230 mW with an optical conversion efficiency of 45% has been obtained.29.8 mW of green fundamental spatial mace light have been generated with a"light to light"conversion efficiency of 12.4% when the input pump power was 240 mW.Data are also presented for the spectral variation of the output with input pump POwer.We have observed an average laser wavelength variation of 1.05×10-3 nm/mW versus pump power.Using a synchronism-search compensation frequency-stabilized system and an electrooptic switch technique to the frequency-doubled pulsed ring Nd:YAG laser,we have obtained a frequency-stabilized and frequency-doubled laser at 532 nm,with a pulse width of 100μs,peak power of more than 100 W,and frequency stability of less than 10 MHz,while the intensity relaxation oscillation was eliminated.