中国物理B ›› 2004, Vol. 13 ›› Issue (5): 700-703.doi: 10.1088/1009-1963/13/5/022

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Optical phase conjugation by resonant degenerate four-wave mixing in liquid phase medium

樊荣伟, 陈德应, 房涛, 鞠有伦, 王骐, 马祖光   

  1. Institute of Opto-Electronics, Harbin Institute of Technology, Haerbin 150001 China
  • 收稿日期:2003-09-24 修回日期:2003-12-06 出版日期:2005-07-06 发布日期:2005-07-06

Optical phase conjugation by resonant degenerate four-wave mixing in liquid phase medium

Fan Rong-Wei (樊荣伟), Chen De-Ying (陈德应), Fang Tao (房涛), Ju You-Lun (鞠有伦), Wang Qi (王骐), Ma Zu-Guang (马祖光)   

  1. Institute of Opto-Electronics, Harbin Institute of Technology, Haerbin 150001 China
  • Received:2003-09-24 Revised:2003-12-06 Online:2005-07-06 Published:2005-07-06

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摘要： In this paper, frequency-doubled Nd:YAG laser's phase conjugation has been investigated experimentally using resonant degenerate four-wave mixing (DFWM). The iodine solution was used as resonant medium. In this way, the energy of the DFWM phase conjugation beam arrived at 43μJ/pulse while the total pump beam's energy reached 8mJ/pulse. The relation between the pulse energy of the DFWM phase conjugation beam and that of the pump beam was investigated. We also measured the optical field distributions of pump beam and DFWM phase conjugation beam, from which it can be noticed that the DFWM phase conjugation can improve the laser beam quality. At the same time, we observed the influence of the pump beam's disturbance on the DFWM signal.

Abstract: In this paper, frequency-doubled Nd:YAG laser's phase conjugation has been investigated experimentally using resonant degenerate four-wave mixing (DFWM). The iodine solution was used as resonant medium. In this way, the energy of the DFWM phase conjugation beam arrived at 43μJ/pulse while the total pump beam's energy reached 8mJ/pulse. The relation between the pulse energy of the DFWM phase conjugation beam and that of the pump beam was investigated. We also measured the optical field distributions of pump beam and DFWM phase conjugation beam, from which it can be noticed that the DFWM phase conjugation can improve the laser beam quality. At the same time, we observed the influence of the pump beam's disturbance on the DFWM signal.

Key words: phase conjugation, DFWM, iodine solution

中图分类号:  (Phase conjugation; photorefractive and Kerr effects)

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