红光波段虚像相位阵列光谱仪研究  

Development of virtually imaged phased array spectrometer in red band

作　　者：周昊 方波[1,2] 杨娜娜[1,2] 赵卫雄 王春晖 张为俊[1,3] ZHOU Hao;FANG Bo;YANG Nana;ZHAO Weixiong;WANG Chunhui;ZHANG Weijun(Anhui Institute of Optics and Fine Mechanics,HFIPS,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;School of Environmental Science and Optoelectronic Technology,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽合肥230031 [2]中国科学技术大学,安徽合肥230026 [3]中国科学技术大学环境科学与光电技术学院,安徽合肥230026

出　　处：《量子电子学报》2021年第6期788-795,共8页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金,41805104,41627810,41875151,42022051;中国科学院青年创新促进会,Y202089。

摘　　要：利用虚像相位阵列(VIPA)的强色散能力发展而来的VIPA光谱仪是一种新型的高性能光谱测量装置,兼具宽光谱覆盖范围、高时间分辨率及高光谱分辨率等优点。基于60 GHz自由光谱区(FSR)的石英VIPA,研制了一台可用于红光波段光谱测量的VIPA光谱仪,并测量了633 nm多模激光器的出射光谱。在100μs的时间分辨率下,获得了单次3.1 nm测量谱宽、2.0 pm(1.5 GHz)的高光谱分辨率,连续4 h运行显示光谱漂移小于0.50 pm。通过采用衍射光栅扫描装置、更短曝光速度的面阵CCD和更大FSR的VIPA,有望进一步提高光谱仪性能。VIPA spectrometer,based on the strong dispersion capability of the virtually imaged phased array(VIPA),is a new type of high-performance spectral measurement technology,which has the advantages of wide spectral coverage,high time resolution,and high spectral resolution.Based on a quartz VIPA in 60 GHz free spectral region(FSR),a VIPA spectrometer for spectrum measurement in the red light band is developed,and the output spectrum of a 633 nm multi-mode laser is measured.At a time resolution of 100μs,the output spectrum with a single measurement of 3.1 nm spectral width and 2.0 pm(1.5 GHz)high spectral resolution is obtained.And the continuous operation for 4 h shows that the spectral drift is less than 0.5 pm.The performance of the spectrometer can be further improved by using diffraction grating scanning device,area CCD with shorter exposure speed,and VIPA with larger FSR.

关 键 词：光谱学 光谱仪 虚像相位阵列 高光谱分辨率 

分 类 号：O439[机械工程—光学工程]