连续单频激光的腔外调频及其在光谱测量中的应用

Extracavity Modulation of a Single-frequency dye laser and Its Application in Spectral Measurement

研制了一台通光孔径为２ｍｍ的ＬｉＴａＯ３射频电光调制器，调制频率为９５ＭＨｚ。获得十个边频分量，并对调频结果作了分析。应用此器件所产生的调频激光束测得２３８Ｕ和Ｌａ的荧光谱，对比和分析了单频激光和调频激光荧光谱的差别，获得了明显的谱线增宽及增强效应。

A LiTaO3 electro-optics modulator used to modutate single-frequency dye laser was reported. The modulated frequency is 95 MHz. Ten sidebands have been obtained.Using this device to measure the fluorescene of 238U and superfine structure of La, a good result was achieved.