Open AccessSupercontinuum generation in holey microstructure fibers by femtosecond laser pulses
Author(s) -
Shuguang Li,
Yuling Ji,
Guiyao Zhou,
Lantian Hou,
Qingyue Wang,
Minglie Hu,
Yanfeng Li,
Zhiyi Wei,
Jun Zhang,
Xiaodong Liu
Publication year - 2004
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.53.478
Subject(s) - supercontinuum , materials science , microstructure , femtosecond , optics , cladding (metalworking) , laser , zero dispersion wavelength , wavelength , photonic crystal fiber , broadband , optical fiber , optoelectronics , graded index fiber , physics , composite material , fiber optic sensor
It Is reported that the supercontinuum spectrum can be generated in holey microstructure fibers by femtosecond laser pulses with a 800nm center wavelength. Broadband continua extending from 440 to 890nm are generated in holey microstructure fibers. Based on the theory of scalar approximation, the effective refractive index of the cladding and effective area for the fundamental space-filling mode and chromatic dispersion of fibers are calculated. It is found that the holey microstructure fibers have specifically the ability of controlling dispersion and waveguide property.The mechanism of supercontinuum generation in holey microstructure fibers is explicated preliminarily. The theoretic analysis is in good accodance with the experimental result.It is considered that supercontinuum broadband spectrum can be generated in holey microstructure fibers even if their cladding constitutes of random gas-line.