Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers

Belal, M.; Xu, L.; Horak, P.; Shen, L.; Feng, X.; Ettabib, M.; Richardson, D. J.; Petropoulos, P.; Price, J. H. V.. 2015 Mid-infrared supercontinuum generation in suspended core tellurite microstructured optical fibers. Optics Letters, 40 (10). 2237. https://doi.org/10.1364/OL.40.002237

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Official URL: http://dx.doi.org/10.1364/OL.40.002237

Abstract/Summary

We report the fabrication of a tellurite optical fiber with a suspended core design, formed on a 220-nm-wide filament of glass. The fiber was pumped at two different wavelengths (1500 and 2400 nm) using femtosecond pulses generated from an optical parametric oscillator (OPO) in order to produce mid-infrared supercontinuum (SC). We observed that SC spectra extending to 3 μm were readily generated. To further optimize the design, detailed numerical study was performed, which revealed how the fiber structural characteristics dramatically influence the spectral broadening because of the changes in the dispersion profile and in turn, the interplay of nonlinear effects that give rise to SC generation. We found that an accurate control of the core shape can be employed to contain the generated SC spectra within well-defined spectral regions or to provide a broad extension of the continuum to beyond 4 μm.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1364/OL.40.002237
ISSN:	0146-9592
Date made live:	12 Nov 2019 15:20 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/525814

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1364/OL.40.002237

ISSN:

0146-9592

Date made live:

12 Nov 2019 15:20 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/525814