Open AccessEffect of frequency chirping on supercontinuum generation in photonic crystal fibers
Author(s) -
Ziwei Zhu,
Thomas G. Brown
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000689
Subject(s) - supercontinuum , chirp , optics , photonic crystal fiber , bandwidth (computing) , materials science , raman spectroscopy , chirp spread spectrum , physics , optical fiber , optoelectronics , telecommunications , computer science , laser , spread spectrum , channel (broadcasting) , direct sequence spread spectrum
Pre-chirp of the input pulse has a significant effect on pulse evolution in a photonic crystal fiber. We present numerical simulations which show that the supercontinuum bandwidth increases with the linear chirp, and that the coherence of supercontinuum improves as frequency chirping increases. An optimal positive chirp is identified that maximizes the supercontinuum bandwidth, corresponding to the formation of only one red-shifting Raman soliton.