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.
13075-13083
Shen, L.
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Healy, N.
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Mehta, P.
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Day, T.D.
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Sparks, J.R.
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Badding, J.V.
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Peacock, A.C.
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3 June 2013
Shen, L.
f45b1185-ca40-4af3-8b79-d444dc11dc8f
Healy, N.
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Mehta, P.
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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., 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), .
(doi:10.1364/OE.21.013075).
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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oe-21-11-13075
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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: http://eprints.soton.ac.uk/id/eprint/356434
ISSN: 1094-4087
PURE UUID: de6bf448-f3b0-407d-9efb-31efdaf3b34a
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Date deposited: 13 Sep 2013 10:43
Last modified: 15 Mar 2024 03:15
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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
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