中国物理B ›› 2001, Vol. 10 ›› Issue (7): 621-625.doi: 10.1088/1009-1963/10/7/307

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

DESIGN OF A 532nm Nd:YVO4/KTP SINGLE-FREQUENCY LASER

徐春林1, 沈乃澂2, 臧二军2, 孙义民2, 鲁海宁2, 赵昆2, 张学斌2   

  1. (1)Institute of Microelectronics, Tsinghua University, Beijing 100084, China; (2)The Joint Laboratory of Advanced Technology in Measurements, Beijing 100013, China
  • 收稿日期:2000-10-08 修回日期:2001-03-21 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by State Key Laboratory on Integrated Optoelectronics.

DESIGN OF A 532nm Nd:YVO4/KTP SINGLE-FREQUENCY LASER

Xu Chun-lin (徐春林)a, Shen Nai-cheng (沈乃澂)b, Zang Er-jun (臧二军)b, Sun Yi-min (孙义民)b, Lu Hai-ning (鲁海宁)b, Zhao Kun (赵昆)b, Zhang Xue-bin (张学斌)b   

  1. a Institute of Microelectronics, Tsinghua University, Beijing 100084, China; b The Joint Laboratory of Advanced Technology in Measurements, Beijing 100013, China
  • Received:2000-10-08 Revised:2001-03-21 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by State Key Laboratory on Integrated Optoelectronics.

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摘要： A model of the laser-diode pumped solid-state laser is developed to deduce the minimum average radii of the pump beam in the solid medium, since the smaller the cavity waist, the higher the laser output power is expected to be. With an appropriate coupling system consisting of the collimating lens, prism pair and focusing lens, a diode-pumped single-frequency Nd:YVO4/KTP intracavity frequency-doubling cw laser has been demonstrated through the precise temperature control of the Nd:YVO4 crystal, the KTP crystal and the diode laser. The 532nm single-frequency output power of 40.4mW (in fact 55mW if the reflection loss of the triangular prism is taken into account) is obtained for an incident power of 515mW. It is derived theoretically and is verified in experiment that the frequency drift of the free-running laser can be reduced by increasing the cavity length.

Abstract: A model of the laser-diode pumped solid-state laser is developed to deduce the minimum average radii of the pump beam in the solid medium, since the smaller the cavity waist, the higher the laser output power is expected to be. With an appropriate coupling system consisting of the collimating lens, prism pair and focusing lens, a diode-pumped single-frequency Nd:YVO4/KTP intracavity frequency-doubling cw laser has been demonstrated through the precise temperature control of the Nd:YVO4 crystal, the KTP crystal and the diode laser. The 532nm single-frequency output power of 40.4mW (in fact 55mW if the reflection loss of the triangular prism is taken into account) is obtained for an incident power of 515mW. It is derived theoretically and is verified in experiment that the frequency drift of the free-running laser can be reduced by increasing the cavity length.

Key words: 532nm laser, single frequency, Nd:YVO4, KTP

中图分类号:  (Doped-insulator lasers and other solid state lasers)

  • 42.55.Rz
42.60.By (Design of specific laser systems) 42.15.Eq (Optical system design) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Pk (Continuous operation) 42.70.Hj (Laser materials) 42.79.Bh (Lenses, prisms and mirrors)