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Experimental study of coherent beam combining of two fiber lasers

Duan Kai-Liang Wang Yi-Shan Wang Jian-Ming

Experimental study of coherent beam combining of two fiber lasers

Duan Kai-Liang, Wang Yi-Shan, Wang Jian-Ming
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Publishing process
  • Received Date:  10 December 2007
  • Accepted Date:  25 February 2008
  • Published Online:  20 September 2008

Experimental study of coherent beam combining of two fiber lasers

  • 1. (1)中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安 710119; (2)中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安 710119;中国科学院研究生院,北京 100049

Abstract: The phase-locking of two photonic crystal fiber (PCF) lasers is studied experimentally by using Michelson cavity technique, and 47 W coherent output power is obtained. The phenomenon of interference-enhancement and interference-loss on the two arms of the Michelson cavity is theoretically explained by analyzing the optical path difference. Experiment shows that the Michelson cavity setup can improve the spectra of the combined laser significantly. The bandwidth of the combined laser is less than 5nm in our experiment.

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