中国物理B ›› 2000, Vol. 9 ›› Issue (5): 337-341.doi: 10.1088/1009-1963/9/5/005

• GENERAL • 上一篇    下一篇

GENERAL SYNCHRONIZATION OF CHAOS IN A SYSTEM OF TWO NON-IDENTICAL LASERS

朱士群1, 吕翔1, 陈险峰1, K. S. Thornburg2, Jr.2, G. D. VanWiggeren2, R. Roy2   

  1. (1)Department of Physics, Suzhou University, Suzhou 215006, China; (2)School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, U.S.A.
  • 收稿日期:1999-10-28 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 No. 19874046).

GENERAL SYNCHRONIZATION OF CHAOS IN A SYSTEM OF TWO NON-IDENTICAL LASERS

Zhu Shi-qun (朱士群)a, Lü Xiang (吕翔)a, Chen Xian-feng (陈险峰)a, K. S. Thornburgb, Jr.b, G. D. VanWiggerenb, R. Royb   

  1. a Department of Physics, Suzhou University, Suzhou 215006, China; b School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, U.S.A.
  • Received:1999-10-28 Online:2005-06-12 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19874046).

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摘要： General synchronization of the chaotic intensity fluctuations of two spatially coupled Nd:YAG lasers with pump modulation is investigated theoretically when the losses of the two lasers are different. It is shown that the chaotic synchronization still exists for medium coupling even though the two lasers are different. For strong coupling the system shows periodic motion of laser intensities. While for weak coupling, the two lasers oscillate independently. It is obvious that the increase of difference between the two lasers reduces the degree of chaotic synchronization.

Abstract: General synchronization of the chaotic intensity fluctuations of two spatially coupled Nd:YAG lasers with pump modulation is investigated theoretically when the losses of the two lasers are different. It is shown that the chaotic synchronization still exists for medium coupling even though the two lasers are different. For strong coupling the system shows periodic motion of laser intensities. While for weak coupling, the two lasers oscillate independently. It is obvious that the increase of difference between the two lasers reduces the degree of chaotic synchronization.

中图分类号:  (Numerical simulations of chaotic systems)

  • 05.45.Pq
05.45.Xt (Synchronization; coupled oscillators) 42.55.Rz (Doped-insulator lasers and other solid state lasers) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)