Open AccessSupercontinuum spectrum control in microstructure fibers by initial chirp management
Author(s) -
Rodislav Driben,
N. Zhavoronkov
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.016733
Subject(s) - supercontinuum , chirp , optics , photonic crystal fiber , femtosecond , dispersion (optics) , materials science , self phase modulation , pulse (music) , chirp spread spectrum , raman spectroscopy , optical fiber , nonlinear optics , physics , telecommunications , laser , spread spectrum , computer science , channel (broadcasting) , detector , direct sequence spread spectrum
Experiments and numerical simulation were performed for verification of the role of femtosecond pulse chirp for supercontinuum generation in photonic crystal fiber. We demonstrate that injection of high power negatively chirped pulses near zero dispersion point brings an advantage over positively chirped pulses resulting in additional collision between solitons and in development of a significantly broader spectrum. Coupling between Raman induced solitons and dispersive waves generated by higher order dispersion was proven to be the key mechanism behind the results.