title: All-fiber quasi-continuous wave supercontinuum generation in single-mode high-nonlinear fiber pumped by submicrosecond pulse with low peak power.
abstract: We demonstrate quasi-continuous wave supercontinuum generation in a single-mode high-nonlinear fiber (HNLF) in 1.55 μm band, which is pumped by the amplified passively Q-switched submicrosecond pulse. The pump wavelength is in the normal dispersion region of HNLF and near to the zero-dispersion wavelength. The broad SC spectral range from 1200 to 2260 nm is obtained with the low pump peak power of 17.8 W. The 20 dB bandwidth of 922 nm from 1285 to 2207 nm is obtained with the assumption that the peak near 1560 nm is filtered. The spectrum density for the 20 dB bandwidth is from -27.5 to -7.5 dbm/nm.
authors.affiliation: Research Center for Advanced Photon Technology, Toyota Technological Institute, Tempaku, Nagoya, Japan. weiqinggao@yahoo.com
authors.forename: Weiqing
authors.initials: W
authors.lastname: Gao
authors.forename: Meisong
authors.initials: M
authors.lastname: Liao
authors.forename: Xin
authors.initials: X
authors.lastname: Yan
authors.forename: Takenobu
authors.initials: T
authors.lastname: Suzuki
authors.forename: Yasutake
authors.initials: Y
authors.lastname: Ohishi