Karim, Mohammad Rezaul and Ahmad, Harith and Ghosh, Souvik and Rahman, B.M. Azizur (2018) Mid-infrared supercontinuum generation using As2Se3 photonic crystal fiber and the impact of higher-order dispersion parameters on its supercontinuum bandwidth. Optical Fiber Technology, 45. pp. 255-266. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2018.07.024.
Full text not available from this repository.Abstract
A dispersion engineered As2Se3 chalcogenide hexagonal photonic crystal fiber which can produce a mid-infrared supercontinuum (SC) spectral evolution spanning from 2 μm to beyond 15 μm with a low peak power of 3 kW is numerically designed and demonstrated. Numerical analysis is carried out to investigate the impact of higher-order dispersion (HOD) parameters on the output SC bandwidth and shows that the SC spectral broadening at the output of the proposed design depends on the convergence of the Taylor approximation with increasing fitting parameters, which implies a sufficient number of HOD parameters must be included during numerical simulations. Four designs with different structural parameters are optimized for pumping, each operating at a different pump wavelength to test the convergence of output SC by the successive addition of HOD parameters. To realize spurious free SC spectral evolution by the proposed designs, HOD terms up to the sixteenth-order are included during all SC simulations. The proposed design can be used in molecular finger print spectroscopy, bio-medical imaging as well as various mid-infrared region applications.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education , Malaysia (MOHE) under the Grants GA 010-2014 (ULUNG), University of Malaya under the Grants RP029B-15 AFR and RU001-2017 |
| Uncontrolled Keywords: | Numerical approximation and analysis; Nonlinear optics; Dispersion; Chalcogenide; Photonic crystal fiber; Supercontinuum generation |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 22 Jul 2019 04:26 |
| Last Modified: | 22 Jul 2019 04:26 |
| URI: | http://eprints.um.edu.my/id/eprint/21684 |
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