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Advances in Condensed Matter Physics
Volume 2017 (2017), Article ID 1268230, 9 pages
https://doi.org/10.1155/2017/1268230
Research Article

Dynamics of Dispersive Wave Generation in Gas-Filled Photonic Crystal Fiber with the Normal Dispersion

1School of Electrical Engineering, University of South China, Hengyang 421001, China
2Oriental Science and Technology College, Hunan Agricultural University, Changsha 410082, China

Correspondence should be addressed to Meng Zhang

Received 18 May 2017; Accepted 1 August 2017; Published 30 August 2017

Academic Editor: Xiaofeng Zhou

Copyright © 2017 Zhixiang Deng and Meng Zhang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The absence of Raman and unique pressure-tunable dispersion is the characteristic feature of gas-filled photonic crystal fiber (PCF), and its zero dispersion points can be extended to the near-infrared by increasing gas pressure. The generation of dispersive wave (DW) in the normal group velocity dispersion (GVD) region of PCF is investigated. It is demonstrated that considering the self-steepening (SS) and introducing the chirp of the initial input pulse are two suitable means to control the DW generation. The SS enhances the relative average intensity of blue-shift DW while weakening that of red-shift DW. The required propagation distance of DW emission is markedly varied by introducing the frequency chirp. Manipulating DW generation in gas-filled PCF by the combined effects of either SS or chirp and three-order dispersion (TOD) provides a method for a concentrated transfer of energy into the targeted wavelengths.