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Nonlinear transmission properties of hydrogenated amorphous silicon core fibers towards the mid-infrared regime

Nonlinear transmission properties of hydrogenated amorphous silicon core fibers towards the mid-infrared regime
Nonlinear transmission properties of hydrogenated amorphous silicon core fibers towards the mid-infrared regime
The nonlinear transmission properties of hydrogenated amorphous silicon (a-Si:H) core fibers are characterized from the near-infrared up to the edge of the mid-infrared regime. The results show that this material exhibits linear losses on the order of a few dB/cm, or less, over the entire wavelength range, decreasing down to a value of 0.29dB/cm at 2.7µm, and negligible nonlinear losses beyond the two-photon absorption (TPA) edge ~ 1.7µm. By measuring the dispersion of the nonlinear Kerr and TPA parameters we have found that the nonlinear figure of merit (FOMNL) increases dramatically over this region, with FOMNL > 20 around 2µm and above. This characterization demonstrates the potential for a-Si:H fibers and waveguides to find use in nonlinear applications extending beyond telecoms and into the mid-infrared regime.
1094-4087
13075-13083
Shen, L.
f45b1185-ca40-4af3-8b79-d444dc11dc8f
Healy, N.
26eec85c-8d12-4f21-a67a-022f8dc2daab
Mehta, P.
6632423c-f325-40f3-a5b8-7afcd8619a25
Day, T.D.
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Sparks, J.R.
40565a13-0809-4674-aa8e-9e6f4ba044d1
Badding, J.V.
940f7adb-73df-4f8a-9c46-e47f5425fef0
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Shen, L.
f45b1185-ca40-4af3-8b79-d444dc11dc8f
Healy, N.
26eec85c-8d12-4f21-a67a-022f8dc2daab
Mehta, P.
6632423c-f325-40f3-a5b8-7afcd8619a25
Day, T.D.
6a6e51d3-d48e-4082-9ef4-9698172e575b
Sparks, J.R.
40565a13-0809-4674-aa8e-9e6f4ba044d1
Badding, J.V.
940f7adb-73df-4f8a-9c46-e47f5425fef0
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Shen, L., Healy, N., Mehta, P., Day, T.D., Sparks, J.R., Badding, J.V. and Peacock, A.C. (2013) Nonlinear transmission properties of hydrogenated amorphous silicon core fibers towards the mid-infrared regime. Optics Express, 21 (11), 13075-13083. (doi:10.1364/OE.21.013075).

Record type: Article

Abstract

The nonlinear transmission properties of hydrogenated amorphous silicon (a-Si:H) core fibers are characterized from the near-infrared up to the edge of the mid-infrared regime. The results show that this material exhibits linear losses on the order of a few dB/cm, or less, over the entire wavelength range, decreasing down to a value of 0.29dB/cm at 2.7µm, and negligible nonlinear losses beyond the two-photon absorption (TPA) edge ~ 1.7µm. By measuring the dispersion of the nonlinear Kerr and TPA parameters we have found that the nonlinear figure of merit (FOMNL) increases dramatically over this region, with FOMNL > 20 around 2µm and above. This characterization demonstrates the potential for a-Si:H fibers and waveguides to find use in nonlinear applications extending beyond telecoms and into the mid-infrared regime.

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e-pub ahead of print date: 21 May 2013
Published date: 3 June 2013
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 356434
URI: https://eprints.soton.ac.uk/id/eprint/356434
ISSN: 1094-4087
PURE UUID: de6bf448-f3b0-407d-9efb-31efdaf3b34a
ORCID for A.C. Peacock: ORCID iD orcid.org/0000-0002-1940-7172

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Date deposited: 13 Sep 2013 10:43
Last modified: 26 Nov 2019 01:49

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Contributors

Author: L. Shen
Author: N. Healy
Author: P. Mehta
Author: T.D. Day
Author: J.R. Sparks
Author: J.V. Badding
Author: A.C. Peacock ORCID iD

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