Open AccessInvestigation of supercontinuum generation in normal dispersion-flattened fiber by picosecond seed pulses
Author(s) -
Ge Xia,
Dexiu Huang,
Xiuhua Yuan
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.2212
Subject(s) - supercontinuum , picosecond , dispersion (optics) , optics , fiber , materials science , pulse (music) , modulation (music) , noise (video) , mixing (physics) , physics , optical fiber , acoustics , photonic crystal fiber , laser , image (mathematics) , quantum mechanics , artificial intelligence , detector , computer science , composite material
The evolution of picosecond seed pulses in the normal dispersion-flattened fiber to generate supercontinuum (SC) is investigated. The appearance of wave breaking during the process and the effect of the revealed four-wave mixing on the char acteristics of SC are also analyzed. The research indicates that the broadening of the pulse spectrum in the initial stage is dominated by the self-phase modulation. Afterwards, self-phase modulation is impaired while four-wave mixing is enhanced due to energy in the inner spectrum region being transferred continuously to the outside wings by dispersion, and the pulse spectrum further broadens remarkably. The characteristic of SC noise manifests the dynamic responses of typical SC spectral structures to the seed pulse amplitude noise that are closely related to the evolution.