Koreeda Akitoshi, Saikan Seishiro
Department of Physics, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan.
Rev Sci Instrum. 2011 Dec;82(12):126103. doi: 10.1063/1.3665929.
A simple modification to a Sandercock-type tandem Fabry-Pérot interferometer is demonstrated. By adding an independent reference laser with temperature tunability, narrow Brillouin lines that are tens GHz shifted from the Rayleigh line can be recorded with much higher frequency resolution than in the original system.
展示了对桑德科克型串联法布里-珀罗干涉仪的一种简单改进。通过添加一个具有温度可调性的独立参考激光器，可以记录与瑞利线相差数十吉赫兹的窄布里渊线，其频率分辨率比原始系统高得多。
