Output characteristics of diode-laser-pumped Tm:YAG laser

다이오드 레이저로 여기되는 Tm:YAG 레이저의 출력 특성연구

  • 정태문 (한국원자력 연구소 양자광학기술개발팀)
  • Published : 2000.08.01


Diode-laser-pumped Tm:YAG laser of wavelength $2.02\mu\textrm{m}$has been manufactured and its excitation efficiency and output characteristics have been investigated. The excitation efficiency was varied from 66 to 68% with respect to the pump power, yielding pump power absorption of 87-89%. The output power was sensitively varied with the temperature of Tm:YAG rod. When the concave output coupler with a focal length of 25 mm and a transmittance of 3% was used, the maximum output power reached up to 1.2 W. The slope and optical efficiency of this Tm: YAG laser was 29% and 20% at $6^{\circ}C$, respectively.tively.



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