光电技术应用, 2015, 30 (6): 40, 网络出版: 2016-01-20
LD泵浦Cr:YAG被动调Q内腔式SrWO4锁模拉曼激光器实验研究
Experiment Research on Laser-diode-pumped Cr:YAG Passively Q-switched Intracavity SrWO4 Mode-locked Raman Laser
激光器 内腔式锁模拉曼激光器 受激拉曼散射 钨酸锶(SrWO4)晶体 Cr:YAG被动调Q 偏振 laser intracavity mode-locked Raman laser stimulated Raman scattering (SRS) strontium tungstate (SrWO4) crystal Cr: YAG passively Q-switched polarization
摘要
采用LD泵浦Cr:YAG被动调Q的内腔式SrWO4锁模拉曼激光器获得了稳定的、调制深度100%的调Q锁模拉曼脉冲。在泵浦功率5.2 W时, 获得了968 mW的平均输出功率, 泵浦光到拉曼光的转换效率为18.6%, 调Q脉冲重复率51 kHz,脉冲宽度7 ns, 这是目前为止报道的内腔式SrWO4拉曼激光器所获得的最大的转换效率, 并对实验中出现的拉曼自锁模现象进行了分析。最后, 对实验中基频光与拉曼光出现的偏振状态进行了相关研究, 给出合理的解释。
Abstract
A laser-diode-pumped Cr:YAG passively Q-switched intracavity SrWO4 mode-locked Raman laser is used to obtain stable Q-switched mode-locked Raman pulse of 100% modulation depth. An average output power of 968 mW is obtained when the incident pump power is 5.2 W, the conversion efficiency of pump to Raman laser is 18.6%.The Q-switched pulses with repetition rate of 51 kHz and pulse width of 7 ns is obtained. To our knowledge, this is the most efficient at present. And the forming reason of mode-locked Raman laser pulse in the experiment is analyzed. The polarization mechanism is researched and reasonable explanations are analyzed.
贾海旭. LD泵浦Cr:YAG被动调Q内腔式SrWO4锁模拉曼激光器实验研究[J]. 光电技术应用, 2015, 30(6): 40. JIA Hai-xu. Experiment Research on Laser-diode-pumped Cr:YAG Passively Q-switched Intracavity SrWO4 Mode-locked Raman Laser[J]. Electro-Optic Technology Application, 2015, 30(6): 40.