Chirped-pulse propagation and spectral compression in all-normal dispersion photonic crystal fibers

Ying Li; Jing Hou; Zongfu Jiang

doi:10.1117/12.970251

15 October 2012 Chirped-pulse propagation and spectral compression in all-normal dispersion photonic crystal fibers

Ying Li, Jing Hou, Zongfu Jiang

Proceedings Volume 8419, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Sensing, Imaging, and Solar Energy; 84190K (2012) https://doi.org/10.1117/12.970251
Event: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2012), 2012, Xiamen, China

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.

Citation Download Citation

Ying Li, Jing Hou, and Zongfu Jiang "Chirped-pulse propagation and spectral compression in all-normal dispersion photonic crystal fibers", 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); https://doi.org/10.1117/12.970251

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