中国激光, 2009, 36 (4): 833, 网络出版: 2009-04-27
对内腔拉曼黄光激光器谱线提取的石英晶体旋光滤波器
Quartz Optical Filter Based on Rotatory Dispersion Effect Used for Intracavity Yellow Raman Laser
摘要
针对内腔拉曼黄光激光器谱线中存在拉曼激光的实际情况,依据石英晶体的旋光色散特性,利用石英晶体和起偏棱镜的组合,设计了一种用于内腔拉曼黄光激光器590 nm谱线提取的石英晶体旋光滤波器。利用Müller矩阵和Stokes参量对旋光滤波器的滤波设计原理进行了分析; 以内腔拉曼黄光激光器作为光源,利用AQ-6315A型光谱仪对旋光滤波器的滤波效果进行了测试。测试结果表明,滤波后出射光中已显示不出波长1180 nm激光的存在,从而保证了倍频激光590 nm的纯度。这种旋光滤波器体积较小,且不改变光的原传播方向,是一种适用于倍频激光的滤波器。
Abstract
Based on the optical rotatory dispersion effect, an quartz optical filter is constructed with quartz crystal and polarizer for picking up the 590 nm spectral line in the intracavity frequency-doubled Nd∶YAG/BaWO4 Raman laser. The operating principle is analyzed by means of Müller matrix and Stokes parameters. The filtering performance is tested by AQ-6315A spectrometer with the intracavity Raman yellow laser as the light source. The experimental results show that the 1180 nm spectra line is extracted after filtering. The filter is compact, does not change the direction of optical beam, and can be applied to frequency-doubled laser.
吴闻迪, 吴福全, 苏富芳, 张姗, 张行愚. 对内腔拉曼黄光激光器谱线提取的石英晶体旋光滤波器[J]. 中国激光, 2009, 36(4): 833. Wu Wendi, Wu Fuquan, Su Fufang, Zhang Shan, Zhang Xingyu. Quartz Optical Filter Based on Rotatory Dispersion Effect Used for Intracavity Yellow Raman Laser[J]. Chinese Journal of Lasers, 2009, 36(4): 833.