Numerical investigation of slow solitons in Bragg gratings with a hyperbolic tangent apodization

doi:10.1088/1674-1056/20/3/034210

Abstract This paper numerically and analytically investigates the formation and propagation motion of optical soliton in the Bragg grating. We choose the fibre Bragg grating with hyperbolic tangent apodization in the middle section in order to obtain slower solitons. Optical fibre soliton but not Bragg grating soliton is used as input pulse in the discussion, which is much more approximate to the light source for the practical purpose. We discuss in detail the effects of the soliton's velocity with some parameters in the process of transmission. The results show that by choosing special parameters, one can make the soliton slow-down with a little distortion and energy decay and obtain tunable time-delay on a small scale.

Keywords: fibre grating slow light soliton hyperbolic tangent apodization

Received: 01 June 2010
Revised: 22 July 2010
Accepted manuscript online:

PACS:	42.81.Wg	(Other fiber-optical devices)
	42.81.Dp	(Propagation, scattering, and losses; solitons)
	42.65.Tg	(Optical solitons; nonlinear guided waves)
	42.79.Dj	(Gratings)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60677003).

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Wang Kui-Ru(王葵如), Cheng Jie-Lin(程洁琳), Sang Xin-Zhu(桑新柱), and Chen Gong(陈功) Numerical investigation of slow solitons in Bragg gratings with a hyperbolic tangent apodization 2011 Chin. Phys. B 20 034210

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Numerical investigation of slow solitons in Bragg gratings with a hyperbolic tangent apodization

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