中国物理B ›› 2001, Vol. 10 ›› Issue (10): 946-950.doi: 10.1088/1009-1963/10/10/312

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

TEMPORAL CHARACTERIZATION OF LASER PULSES FROM JIGUANG-I LASER FACILITY WITH A COMPACT DUAL FUNCTION AUTOCORRELATOR

夏江帆, 魏志义, 邱阳, 吕铁铮, 腾浩, 王兆华, 张杰   

  1. Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2001-03-27 修回日期:2001-05-14 出版日期:2005-06-12 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 19825110 and 69878032) and by the National High-Technology High Power Laser Program, China.

TEMPORAL CHARACTERIZATION OF LASER PULSES FROM JIGUANG-I LASER FACILITY WITH A COMPACT DUAL FUNCTION AUTOCORRELATOR

Xia Jiang-fan (夏江帆), Wei Zhi-yi (魏志义), Qiu Yang (邱阳), Lü Tie-zheng (吕铁铮), Teng Hao (腾浩), Wang Zhao-hua (王兆华), Zhang Jie (张杰)   

  1. Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-03-27 Revised:2001-05-14 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 19825110 and 69878032) and by the National High-Technology High Power Laser Program, China.

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摘要： An optical pulse autocorrelator for rapid and slow scanning is described in this paper. Using an audio loudspeaker on one arm, an interferometric rapid-scanning signal of the output from a high-repetition laser oscillator is obtained. However, by adjusting the positions of the mirrors and using a step-motor on another arm, the intensity autocorrelation function of the output from a low-repetition laser amplifier can be easily measured. Using all-reflecting optics and an adequate nonlinear crystal, the whole instrument is very compact and has been used to measure sub-20 fs light pulses in both configurations with excellent agreement. In the slow-scanning configuration, a pulse train as long as 500ps has been determined. Using this autocorrelator, the home-made JIGUANG-I CPA laser facility was characterized for its pulse duration evolution.

Abstract: An optical pulse autocorrelator for rapid and slow scanning is described in this paper. Using an audio loudspeaker on one arm, an interferometric rapid-scanning signal of the output from a high-repetition laser oscillator is obtained. However, by adjusting the positions of the mirrors and using a step-motor on another arm, the intensity autocorrelation function of the output from a low-repetition laser amplifier can be easily measured. Using all-reflecting optics and an adequate nonlinear crystal, the whole instrument is very compact and has been used to measure sub-20 fs light pulses in both configurations with excellent agreement. In the slow-scanning configuration, a pulse train as long as 500ps has been determined. Using this autocorrelator, the home-made JIGUANG-I CPA laser facility was characterized for its pulse duration evolution.

Key words: interferometric autocorrelation, intensity autocorrelation, femtosecond laser pulses

中图分类号:  (Beam characteristics: profile, intensity, and power; spatial pattern formation)

  • 42.60.Jf
42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.79.Bh (Lenses, prisms and mirrors) 42.79.Hp (Optical processors, correlators, and modulators)