J4 ›› 2009, Vol. 26 ›› Issue (5): 613-618.

• Nonlinear Optics • Previous Articles     Next Articles

Numerical study of self-similar pulse transmission in comb-like profiled dispersion fiber

JIANG Guang-Yu, FU Yan-Jun, HUANG Yan, WAN Sheng-Peng   

  1. College of Automation, Nanchang Hangkong University, Nanchang 330063, China
  • Published:2009-09-28 Online:2009-08-27

Abstract:

Based on the nonlinear Schrödinger equation desiring pulse propagation in fiber and the linearly chirped parabolic pulse generation by the dispersion decreasing fiber with a normal dispersion (ND-DDF) with a hyperbolic profile, a novel scheme for the generation of the self-similar parabolic pulse by use of a comb-like profiled fiber(CDPF)with normal group-velocity dispersion has been proposed. The corresponding numerical model is also presented. In this model, the evolution of the self-similar parabolic pulse in the CDPF with close to dispersion profile of the DDF has been analyzed numerically. The results show that when the hyperbolic-secant-like pulses at 1550nm has the different initial energy and pulse width, the pulse in the CDPF can evolve into a linearly chirped pulse with an exact parabolic intensity profile.

Key words: nonlinear optics, comb-like profiled dispersion fiber, self-similar pulse, chirp