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- Title
Exploiting higher-order mode dispersion of bend M-type chalcogenide fiber in mid-IR supercontinuum generation.
- Authors
Thamarai Selvi, Thirumavalavan; Rajesh Kanna, B.
- Abstract
We propose and numerically demonstrate chalcogenide based bend M-type fiber for mid-IR supercontinuum (SC) generation through higher order mode (HOM) of LP02. In order to achieve this, we comprise two glass materials such as As2Se3 in core and Ge10As23.4Se66.6 in cladding. M-type index fiber has a special property that the HOM of LP02 is confined into the core region with help of high index ring. The mode field distribution of the proposed fiber is numerically calculated by a finite element method. By optimizing structural dimensions in each bending case, we realize a zero dispersion wavelength, double zero dispersion wavelength effective area and power fraction in core. The simulation results shows the flat anomalous dispersion in the wavelength range of 2.1–2.6µm and 2.5–6.5µm for the core radius 4 and 10 µm, respectively at bending case of 1, 3, and 5 cm. which is important for employing the mature fiber laser technology at mid-IR regions.
- Subjects
SUPERCONTINUUM generation; CORE materials; FINITE element method; FIBER lasers; CHALCOGENIDES
- Publication
Journal of Optical Communications, 2023, Vol 44, Issue 1, ps551
- ISSN
0173-4911
- Publication type
Article
- DOI
10.1515/joc-2020-0115