Chinese Optics Letters, Volume. 5, Issue s1, 148(2007)

Fiber optic coupling of high power laser diode array

Gang Niu1,2,3、*, Zhongwei Fan1,2,3, Peifeng Wang3, Jianfeng Cui3, Zhaohui Shi1,2,3, and Jing Zhang1,2,3
Author Affiliations
  • 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
  • 2Graduate School of the Chinese Academy of Sciences, Beijing 100039
  • 3Beijing GK Laser Technology Co., Ltd., Beijing 100085
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    An optical fiber bundle array coupling module with high output power is proposed. The device integrates the coupling technique of the high power laser diode array (LDA) and the flat end-surfaces of fiber array. This module can efficiently couple the output laser of the LDA into the 19-fiber array through the flat-end surface. The fibers are ordinally fixed precisely on the V-grooves, and the fiber array has the same arrange period with the semiconductor laser units of LDA. A cylindrical fiber lens is fixed at the front of the LDA, which will greatly reduce the divergence of the laser beam and assure the laser beam to totally pass through into the end surface of fibers. High output power of 33.2 W of the fiber optic coupling of LDA is achieved, and maximal coupling efficiency is 84%.

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    Gang Niu, Zhongwei Fan, Peifeng Wang, Jianfeng Cui, Zhaohui Shi, Jing Zhang. Fiber optic coupling of high power laser diode array[J]. Chinese Optics Letters, 2007, 5(s1): 148

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    Paper Information

    Received: Jan. 1, 1949

    Accepted: --

    Published Online: Jul. 15, 2007

    The Author Email: Gang Niu (niugang8765@hotmail.com)

    DOI:

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