Open AccessSupercontinuum-induced multi-wavelength third-harmonic generation in a suspended-core microstructured optical fiber
Author(s) -
Tonglei Cheng,
Xue Zhou,
Yue Sun,
Xin Yan,
Xuenan Zhang,
Fang Wang,
Shuguang Li,
Takenobu Suzuki,
Yasutake Ohishi
Publication year - 2020
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.400371
Subject(s) - supercontinuum , materials science , wavelength , optics , zero dispersion wavelength , optoelectronics , core (optical fiber) , optical fiber , ultrashort pulse , photonic crystal fiber , harmonic , dispersion shifted fiber , fiber optic sensor , laser , physics , quantum mechanics
In this paper, we reported a multi-wavelength third-harmonic generation (THG) induced by supercontinuum (SC) in an in-house fabricated suspended-core microstructured optical fiber (MOF). The adjustment of pump wavelength and pump power exerted an influence on SC which simultaneously emitted third harmonic (TH) waves in the visible light range. At the pump wavelength of 1220 nm and the average pump power of 450 mW, a multi-wavelength TH spectrum (373∼589 nm) with over twenty distinct peaks was observed under the phase matching (PM) condition between the fundamental mode and the higher-order modes. To the best of our knowledge, this is the first report on THG in optical fibers with so great a number of wavelengths. The maximal THG conversion efficiency ∼6.791 × 10 -4 was obtained at 1480 nm, 350 mW, which is highly competitive compared with the values reported previously. Furthermore, theoretical simulation has been carried out, which corresponded well with the experimental observation. This multi-wavelength THG in the suspended-core MOF may provide a unique pathway towards tailored multi-wavelength ultrafast light sources for applications in sensing and imaging technologies.