Simultaneous and Real-Time Collection by Multi-Fiber Coupling and Optical Multi-Channel Analyzer
HE Ying-hong1, CHENG Juan1, RAN Rui-jiang1, XUE Kang1, YANG Jing-guo1*，TAN Hua2, HU Shao-lou2, WANG Xiao-song2
1. Department of Physics, Sichuan University, Chengdu 610064，China 2. Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, CAEP, Mianyang 621900，China
Abstract：A new kind of instrument and method for simultaneous and real-time collection of multi-object spectra by using multi-fiber coupling and Optical Multi-channel Analysis(OMA) was reported. The spectral signals of one object, three objects and five objects were collected successfully in experiments. The spacial resolution of 0.5 mm and detected spectral range of 200-1 100 nm were reached, and at most twenty objects could be collected on the image plane of 1 cm2 area with OMA 4 system. The design of the coupling lens’s light path was discussed to guarantee enough light energy to enter the instrument and little effect on the resolution of spectral instrument. The instrument can be applied widely to the areas of supervising and controlling the quality of light beam in transmission and in the time-resolved and spatial-resolved spectral measurement.
[1] CAO Nian-wen et al(曹念文等). Laser and Optoelectronics Progress(激光与光电子学进展), 1999, (2): 22. [2] YANG Jing-guo et al(杨经国等). Journal of Sichuan University-Natural Science Edition(四川大学学报-自然科学版)，1993, 30(3): 413. [3] CHENG Juan et al(程 娟等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 待发表. [4] QUAN Shi-zhu(权石柱). Optics and Precision Engineering(光学精密仪器), 1994, 2(4): 86. [5] YANG Jing-guo et al. SPIE, 1998, 3558： 622. [6] 吴国安. 光谱仪器设计. 北京: 科学出版社, 1978. 338. [7] LI Jia et al(李 加等). Modern Scientific Instruments(现代科学仪器), 1998, (4): 15.
