Coaxial combination of coherent laser beams

Based on polarization state conversion, a technique for coaxially coherent combination of laser beams is introduced.Laser beams can be coaxially coupled into one beam with high combination efficiency and perfect beam quality.A polarized laser beam combination system based on master oscillator power amplifier (MOPA) configuration is developed and the efficiencies of both unit combination and the whole system are investigated.In the experiment of combining four beams with single longitudinal mode, a combination efficiency of 85.3% is achieved.It can be further enhanced by improving the stability of experimental environment and the quality of optical and mechanical components.

作 者： Hongcheng Dong Xiao Li Chaoyang Wei Hongbo He Yuanan Zhao Jianda Shao Zhengxiu Fan   作者單位： Hongcheng Dong,Xiao Li(Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

Chaoyang Wei,Hongbo He,Yuanan Zhao,Jianda Shao,Zhengxiu Fan(Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China) 

刊 名： 中國(guó)光學(xué)快報(bào)(英文版)  ISTIC EI 英文刊名： CHINESE OPTICS OF LETTERS  年，卷(期)： 2009 07(11)  分類號(hào)： O4  關(guān)鍵詞：