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HUANG Yun-huo, HUANG Lei, ZHANG Hai-tao, LIU Qiang, YAN Ping, GONG Ma-li. Thermal effect in pump end of fiber laser with water-jet guided pump[J]. LASER TECHNOLOGY, 2009, 33(3): 225-227.
Citation: HUANG Yun-huo, HUANG Lei, ZHANG Hai-tao, LIU Qiang, YAN Ping, GONG Ma-li. Thermal effect in pump end of fiber laser with water-jet guided pump[J]. LASER TECHNOLOGY, 2009, 33(3): 225-227.
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Thermal effect in pump end of fiber laser with water-jet guided pump

  • State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

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  • Received Date: March 11, 2008
  • Revised Date: April 15, 2008
  • Published Date: June 24, 2009
    Graphical Abstract
    • Abstract
  • In order to solve the serious thermal effect in high power end-pumped fiber lasers,the water-jet guided pump(WJGP) was proposed.In this pumping scheme,the pumping light is coupled into a high-speed water-jet similar to an opticalfiber.The light is guided by the jet and pumped into a following fiber.The thermal effects in the double-clad fiber laser underWJGP and traditional end-pump were analyzed and calculated respectively.With 800W pumping power,the maximum temperature of the pumped end face of fiber declined from 250℃ under traditional end-pump to 30℃ under WJGP,and the temperature of the fiber surface reduced greatly too.It is proved that the cooling effect of WJGP is significant,especially on the fiber's pumped end and the thermal damage on the pump end in a high power fiber laser can be effectively solved.
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    • References (10)
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