Open AccessHigh-power mid-infrared supercontinuum generation in a fluoroindate fiber with over 2 W power beyond 3.8 µm
Author(s) -
Linyong Yang,
Bin Zhang,
Xuan He,
Kaixin Deng,
Shuailin Liu,
Jing Hou
Publication year - 2020
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.393132
Subject(s) - supercontinuum , optics , fiber laser , materials science , laser , fiber , zblan , nonlinear optics , optical fiber , optoelectronics , photonic crystal fiber , physics , composite material
An all-fiber mid-infrared supercontinuum (MIR-SC) laser source with a power of over 2 W beyond 3.8 µm is demonstrated. The SC laser involves a silica-fiber-based SC laser as a pump source and a piece of fluoroindate (InF 3 ) fiber as a nonlinear medium. The influence of pump pulse repetition rate on the SC characteristics is carefully studied. In the InF 3 fiber, the pump pulse with spectral coverage of 1.9-2.6 µm is converted into MIR-SC with a broadest spectral coverage of 1.9-4.9 µm and a maximal average power of 11.8 W. Up to 2.18 W is measured in the spectral region beyond 3.8 µm, which, to the best of the authors' knowledge, demonstrates the record SC power in this waveband to date.