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Output Characteristics of the Longitudinally Pumped 946 nm Nd:YAG Laser with Laser Diode (반도체 레이저로 종펌핑하를 946 nm Nd:YAG 레이저의 출력 특성)

  • Park, Cha-Gon;Choo, Han-Tae;Kim, Gyu-Ug
    • Korean Journal of Optics and Photonics
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    • v.18 no.4
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    • pp.270-273
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    • 2007
  • We have investigated the output characteristics of the 946 nm Nd:YAG laser which is longitudinally pumped by a fiber coupled laser diode. The temperature of a Nd:YAG crystal mount was kept constant by a controller with thermoelectric cooler. As a result, we measured more intense output at a low temperature, and then the maximum output power was measured to be 870 mW when the pumping power and the temperature were 9.95 W and $5^{\circ}C$, respectively. It appeared that output was decreased above 10 W pump power because of the thermal effects in gain medium.