中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1522-1525.doi: 10.1088/1009-1963/15/7/024

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG /KTP green laser

杜仕峰1, 王素梅1, 张东香1, 冯宝华1, 张春雨1, 张玲1, 张治国1, 张世文2   

  1. (1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,Beijing 100080, China; (2)North China Research Institute of Electro-Optics, Beijing 100015, China
  • 收稿日期:2005-12-28 修回日期:2006-04-17 出版日期:2006-07-20 发布日期:2006-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60278024 and 60438020).

Diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG /KTP green laser

Du Shi-Feng (杜仕峰)a, Wang Su-Mei (王素梅)a, Zhang Dong-Xiang (张东香)a, Feng Bao-Hua (冯宝华)a, Zhang Chun-Yu (张春雨)a, Zhang Ling (张玲)a, Zhang Zhi-Guo (张治国)a, Zhang Shi-Wen (张世文)b   

  1. a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,Beijing 100080, China; b North China Research Institute of Electro-Optics, Beijing 100015, China
  • Received:2005-12-28 Revised:2006-04-17 Online:2006-07-20 Published:2006-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 60278024 and 60438020).

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摘要： We first experimentally demonstrate a laser-diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG green laser with a KTP crystal as the intra-cavity frequency doubler. The device produces an average output power of 680 mW at 532 nm. The corresponding pulse width of the Q-switched envelope of the green laser is 170±20 ns. The mode-locked pulses have a repetition rate of approximately 183 MHz and the average pulse duration is estimated to be around sub-nanosecond. It is found that the intra-cavity frequency doubling greatly improves the modulation depth and stability of the mode-locked pulses within the Q-switched envelope.

Abstract: We first experimentally demonstrate a laser-diode end-pumped self-Q-switched and mode-locked Nd,Cr:YAG green laser with a KTP crystal as the intra-cavity frequency doubler. The device produces an average output power of 680 mW at 532 nm. The corresponding pulse width of the Q-switched envelope of the green laser is 170±20 ns. The mode-locked pulses have a repetition rate of approximately 183 MHz and the average pulse duration is estimated to be around sub-nanosecond. It is found that the intra-cavity frequency doubling greatly improves the modulation depth and stability of the mode-locked pulses within the Q-switched envelope.

Key words: frequency doubling, Nd, Cr:YAG crystal, self-Q-switched and mode-locked pulses, green laser

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

  • 42.55.Rz
42.60.Fc (Modulation, tuning, and mode locking) 42.60.Gd (Q-switching) 42.60.Lh (Efficiency, stability, gain, and other operational parameters) 42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)