中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1528-1533.doi: 10.1088/1674-1056/18/4/039

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Ultraslow optical solitons in tunnel-coupled double semiconductor quantum well

陈爱喜1, 徐彦秋1, 邓黎1, 周素云2   

  1. (1)Department of Applied Physics, East China Jiaotong University, Nanchang 330013, China; (2)Department of Physics, Jiangxi Science and Technology Normal University, Nanchang 330013, China
  • 收稿日期:2008-08-26 修回日期:2008-09-22 出版日期:2009-04-20 发布日期:2009-04-20
  • 基金资助:
    Project supported by the National Fundamental Research Program of China (Grant No 2005CB724508), Natural Science Foundation of Jiangxi, China (Grant Nos 2007GZW0819 and 2008GQW0017), and the Scientific Research Foundation of Jiangxi Provincial Department

Ultraslow optical solitons in tunnel-coupled double semiconductor quantum well

Chen Ai-Xi(陈爱喜)a)† , Xu Yan-Qiu(徐彦秋)a), Deng Li(邓黎)a), and Zhou Su-Yun(周素云)b)   

  1. a Department of Applied Physics, East China Jiaotong University, Nanchang 330013, China; b Department of Physics, Jiangxi Science and Technology Normal University, Nanchang 330013, China
  • Received:2008-08-26 Revised:2008-09-22 Online:2009-04-20 Published:2009-04-20
  • Supported by:
    Project supported by the National Fundamental Research Program of China (Grant No 2005CB724508), Natural Science Foundation of Jiangxi, China (Grant Nos 2007GZW0819 and 2008GQW0017), and the Scientific Research Foundation of Jiangxi Provincial Department

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摘要： This paper investigates the nonlinear evolution of the pulse probe field in an asymmetric coupled-quantum well driven coherently by a pulse probe field and two controlled fields. This study shows that, by choosing appropriate physical parameters, self-modulation can precisely balance group velocity dispersion in the investigated system, leading to the formation of ultraslow optical solitons of the probe field. The proposed scheme may lead to the development of the controlled technique of optical buffers and optical delay lines.

Abstract: This paper investigates the nonlinear evolution of the pulse probe field in an asymmetric coupled-quantum well driven coherently by a pulse probe field and two controlled fields. This study shows that, by choosing appropriate physical parameters, self-modulation can precisely balance group velocity dispersion in the investigated system, leading to the formation of ultraslow optical solitons of the probe field. The proposed scheme may lead to the development of the controlled technique of optical buffers and optical delay lines.

Key words: ultraslow optical soliton, quantum well, group velocity

中图分类号:  (Optical solitons; nonlinear guided waves)

  • 42.65.Tg
42.55.Px (Semiconductor lasers; laser diodes) 42.65.Jx (Beam trapping, self-focusing and defocusing; self-phase modulation)