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Proceedings Paper

Chirped-pulse propagation and spectral compression in all-normal dispersion photonic crystal fibers
Author(s): Ying Li; Jing Hou; Zongfu Jiang
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Paper Abstract

Based on the generalized nonlinear Schrödinger equation, the femtosecond chirped-pulse propagation and supercontinuum (SC) generation in all-normal dispersion photonic crystal fibers (ANDi PCFs) are numerically investigated. The simulation results show that pre-chirp of the input pulse has a significant effect on the pulse evolution in ANDi PCFs. In the initial stage, up-chirped pulse broadens drastically, non-chirped pulse increases normally, and the spectrum of down-chirped pulse narrows rapidly through self-phase modulation (SPM). The ANDi PCF with smaller absolute value of dispersion (|D|) at the maximum dispersion wavelength (MDW) compresses the spectrum more than that with larger |D| but needs longer fiber as SPM dominate over GVD in it. As ANDi PCF is long enough, the bandwidth of the spectrum depends on the pre-chirp parameter at a fixed peak power. Bigger chirp result in broader spectrum for either up-chirped or down-chirped pulse. Increasing peak power can also enhance the bandwidth of the spectrum, but it is not such useful with largely chirped pulse.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy, 84190K (15 October 2012); doi: 10.1117/12.970251
Show Author Affiliations
Ying Li, National Univ. of Defense Technology (China)
Jing Hou, National Univ. of Defense Technology (China)
Zongfu Jiang, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8419:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy
Yadong Jiang; Junsheng Yu; Zhifeng Wang, Editor(s)

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