SEMICONDUCTOR DEVICES

Spherical distribution structure of the semiconductor laser diode stack for pumping

Zhao Tianzhuo, Yu Jin, Liu Yang, Zhang Xue, Ma Yunfeng and Fan Zhongwei

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Abstract: A semiconductor laser diode stack is used for pumping and 8 semiconductor laser diode arrays of the stack are put on a sphere, and the output of every bar is specially off-axis compressed to realize high coupling efficiency. The output beam of this semiconductor laser diode stack is shaped by a hollow duct to the laser active medium. The efficiency of the hollow light pipe, which is used for semiconductor laser diode stack coupling, is analyzed by geometric optics and ray tracing. Geometric optics analysis diagnoses the reasons for coupling loss and guides the design of the structure. Ray tracing analyzes the relation between the structural parameters and the output characteristics of this pumping system, and guides parameter optimization. Simulation and analysis results show that putting the semiconductor laser diode arrays on a spherical surface can increase coupling efficiency, reduce the optimum duct length and improve the output energy field distribution.

Key words: semiconductor pump

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    Received: 20 August 2015 Revised: 05 April 2011 Online: Published: 01 September 2011

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      Zhao Tianzhuo, Yu Jin, Liu Yang, Zhang Xue, Ma Yunfeng, Fan Zhongwei. Spherical distribution structure of the semiconductor laser diode stack for pumping[J]. Journal of Semiconductors, 2011, 32(9): 094006. doi: 10.1088/1674-4926/32/9/094006 Zhao T Z, Yu J, Liu Y, Zhang X, Ma Y F, Fan Z W. Spherical distribution structure of the semiconductor laser diode stack for pumping[J]. J. Semicond., 2011, 32(9): 094006. doi: 10.1088/1674-4926/32/9/094006.Export: BibTex EndNote
      Citation:
      Zhao Tianzhuo, Yu Jin, Liu Yang, Zhang Xue, Ma Yunfeng, Fan Zhongwei. Spherical distribution structure of the semiconductor laser diode stack for pumping[J]. Journal of Semiconductors, 2011, 32(9): 094006. doi: 10.1088/1674-4926/32/9/094006

      Zhao T Z, Yu J, Liu Y, Zhang X, Ma Y F, Fan Z W. Spherical distribution structure of the semiconductor laser diode stack for pumping[J]. J. Semicond., 2011, 32(9): 094006. doi: 10.1088/1674-4926/32/9/094006.
      Export: BibTex EndNote

      Spherical distribution structure of the semiconductor laser diode stack for pumping

      doi: 10.1088/1674-4926/32/9/094006
      Funds:

      The National Key Technologies R&D Program of China

      • Received Date: 2015-08-20
      • Accepted Date: 2011-02-10
      • Revised Date: 2011-04-05
      • Published Date: 2011-08-31

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