Enhanced dispersive wave generation by using chirped pulses in a microstructured fiber
Autor: | Chunfu Cheng, Baifei Shen, Xiaofang Wang, Zongbao Fang |
---|---|
Rok vydání: | 2005 |
Předmět: |
Materials science
business.industry Nonlinear optics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Pulse (physics) Dispersive partial differential equation Wavelength Optics Cross-polarized wave generation Dispersion (optics) Chirp Soliton Electrical and Electronic Engineering Physical and Theoretical Chemistry business |
Zdroj: | Optics Communications. 244:219-225 |
ISSN: | 0030-4018 |
DOI: | 10.1016/j.optcom.2004.09.061 |
Popis: | A theoretical investigation on the nonlinear pulse propagation and dispersive wave generation in the anomalous dispersion region of a microstructured fiber is presented. By simulating the dispersive wave generation under different conditions. it is found that the generation mechanism of the dispersive wave is mainly due to the pulse trapping across the zero-dispersion wavelength. By varying the initial pulse chirp, the output spectrum can be broadened and the intensity of the dispersive wave can be obviously enhanced. In particular, there exists an optimal positive chirp which maximizes the intensity of the dispersive wave. This effect can be explained by the energy transfer from the Raman soliton to the dispersive wave due to the effect of the pulse trapping and the effect of the higher-order dispersion. From the phase aspect, the explanation of this effect is also included. (C) 2004 Elsevier B.V. All rights reserved. |
Databáze: | OpenAIRE |
Externí odkaz: |