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)
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
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.
Received: 26 August 2008
Revised: 22 September 2008
Accepted manuscript online:
(Beam trapping, self-focusing and defocusing; self-phase modulation)
Fund: 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
Cite this article:
Chen Ai-Xi(陈爱喜), Xu Yan-Qiu(徐彦秋), Deng Li(邓黎), and Zhou Su-Yun(周素云) Ultraslow optical solitons in tunnel-coupled double semiconductor quantum well 2009 Chin. Phys. B 18 1528
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