Detailed single-shot spectral diagnostics of Q-switched solid state lasers
Proceedings of SPIE(2007)
摘要
A measurement station to examine the longitudinal mode structure of Q-switched solid state lasers on a single pulse basis is presented. The key component is a Fabry-Perot interferometer (FPI) providing a high finesse to not only display the full spectral emission bandwidth but also resolve single modes of high gain laser media such as Nd : YVO4. In addition the setup allows one to link relative pulse energy data to each recorded fringe pattern. It is then used to quantify the spectral information of three lasers with a cavity length of up to 200 mm to evaluate correlations among pulse stability, pulse repetition frequency and spectral emission characteristics. The optical approach implies a decaying finesse from approximately 250 to 60 across the measurement range. Therefore the setup can only partially resolve single longitudinal modes of lasers with a cavity length greater than 130mm but still gives a qualitative picture of the emission bandwidth that allows a deeper understanding of the spectral characteristics and thus points the direction for performance improvement.
更多查看译文
关键词
single pulse spectrometer,Fabry-Perot interferometer,Fizeau interferometer,wave-meter,longitudinal modes
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要