Quartz optical filter for wavelength selection of frequency-doubled laser based on optical rotatory dispersion effect  

作　　者：张姗 吴福全 吴闻迪 王海峰 

机构地区：[1]Institute of Laser Research,Qufu Normal University,Qufu 273165

出　　处：《Chinese Optics Letters》2007年第12期717-719,共3页中国光学快报（英文版）

摘　　要：Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers. The operating principle is analyzed by matrix formulation, and the result indicates that the second harmonic of a frequency-doubled laser will be obtained when the rotation angle has a difference of （2n ＋ 1）π/2 （n = 0, 1, 2, 3, ... ） between the two polarizations of the second-harmonic laser and the fundamental laser. The spectrum of the output laser is taken by the AQ-6315A spectrometer, and the experimental results are in good agreement with the theoretical results.Based on the optical rotatory dispersion effect, an optical filter for selecting the second harmonic of a frequency-doubled laser is constructed from quartz in combination with polarizers. The operating principle is analyzed by matrix formulation, and the result indicates that the second harmonic of a frequency-doubled laser will be obtained when the rotation angle has a difference of （2n ＋ 1）π/2 （n = 0, 1, 2, 3, ... ） between the two polarizations of the second-harmonic laser and the fundamental laser. The spectrum of the output laser is taken by the AQ-6315A spectrometer, and the experimental results are in good agreement with the theoretical results.

关 键 词：Dispersion (waves) SPECTROMETERS WAVELENGTH 

分 类 号：TN713[电子电信—电路与系统]