摘要
为了很好地验证纵模频率间隔与激光谐振腔长度之间的关系,实验中改变光学谐振腔的长度,纵模频率间隔相应地发生改变,把某一腔长下的纵模频率通过共焦球面扫描干涉仪将激光器模式输出到示波器进行显示。通过对示波器显示的频率—时间图进行分析,可以测出一定腔长下激光纵模的频率间隔,该测量值与理论计算值基本一致。
To better test the relationship between the frequency interval of longitudinal mode and the length of the laser resonator. In this experiment, when the length of laser resonator is changed, the frequency interval is changed accordingly. The mode frequencies in a certain length are together input into a scanning interferometer and then output one by one, forming a frequency-time graph on an oscilloscope. The frequency interval of laser resonator with certain length can be measured and calculated. The values of experiment are basically consistent to the theoretical calculation.
出处
《光学仪器》
2010年第2期29-33,共5页
Optical Instruments
基金
上海市科学技术委员会重点基础研究项目(07JC14056)
上海市教育发展基金资助项目(2007CG61)
上海市重点学科建设资助项目(S30502)
