Open AccessStimulated Raman scattering in AsSe_2-As_2S_5 chalcogenide microstructured optical fiber with all-solid core
Author(s) -
Weiqing Gao,
Tonglei Cheng,
Xiaojie Xue,
Lai Liu,
Lei Zhang,
Meisong Liao,
Takenobu Suzuki,
Yasutake Ohishi
Publication year - 2016
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.24.003278
Subject(s) - raman scattering , materials science , raman spectroscopy , optics , core (optical fiber) , chalcogenide , picosecond , cladding (metalworking) , photonic crystal fiber , raman amplification , optical fiber , hard clad silica optical fiber , optoelectronics , graded index fiber , laser , fiber optic sensor , wavelength , physics , metallurgy , composite material
The effects of stimulated Raman scattering (SRS) is demonstrated in chalcogenide microstructured optical fiber (MOF) with all-solid AsSe2 core and As2S5 cladding. The first-order Raman Stokes wave is investigated in the MOFs with different core diameters pumped by the picosecond pulses at 1958 nm. The maximum conversion efficiency of -15.0 dB from the pump to first-order Raman Stokes wave is obtained in the MOF with the core diameter of 2.6 μm. The conversion efficiency decreases when the core diameter deviates from 2.6 μm. When the fiber core is larger, the effective nonlinearity is decreased. When the fiber core is smaller, the mode field is difficult to be confined in the core. The walk-off length between the pump and Stokes wave is crucial to the process of SRS according to the analysis of the experimental data. The Raman effects are simulated numerically. The simulated results can agree well with the experiments. It is the first time to demonstrate the Raman effect in AsSe2-As2S5 MOF, to the best of our knowledge.