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Nonlinear optical properties of polycrystalline silicon core fibers from telecom wavelengths into the mid-infrared spectral region

Nonlinear optical properties of polycrystalline silicon core fibers from telecom wavelengths into the mid-infrared spectral region
Nonlinear optical properties of polycrystalline silicon core fibers from telecom wavelengths into the mid-infrared spectral region
Polycrystalline silicon core fibers (SCFs) fabricated via the molten core drawing (MCD) method are emerging as a flexible optoelectronic platform. Here, the optical transmission properties of MCD SCFs that have been tapered down to a few micrometer-sized core dimensions are characterized from the telecom band to the mid-infrared spectal regime. The SCFs exhibit low linear losses on the order of a few dB/cm over the entire wavelength range. Characterization of the two-photon absorption coefficient (βTPA) and nonlinear refractive index (n2) of the SCFs reveals values consistent with previous measurements of single crystal silicon materials, indicating the high optical quality of the polysilicon core material. The high nonlinear figure of merit obtained for wavelengths above 2 μm highlight the potential for these fibers to find application in infrared nonlinear photonics.
1271-1279
Ren, Haonan
580be2e3-5394-4592-8db1-fe02f1282463
Shen, Li
1ed90066-0403-4ad3-a4c0-e0d0f94b0954
Wu, Dong
809e6c6a-71ea-4ffc-abb5-ae2eea7def14
Aktaş, Ozan
2e90db41-f409-431f-9827-2e2577a52457
Hawkins, T.
2d5daf60-c305-46ec-9ab0-e253b5ead591
Ballato, John
a93092f5-bd5f-4126-ada9-142b93308ae5
Gibson, Ursula
a465acb0-eecd-43b9-80c3-2ffe42c48626
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Ren, Haonan
580be2e3-5394-4592-8db1-fe02f1282463
Shen, Li
1ed90066-0403-4ad3-a4c0-e0d0f94b0954
Wu, Dong
809e6c6a-71ea-4ffc-abb5-ae2eea7def14
Aktaş, Ozan
2e90db41-f409-431f-9827-2e2577a52457
Hawkins, T.
2d5daf60-c305-46ec-9ab0-e253b5ead591
Ballato, John
a93092f5-bd5f-4126-ada9-142b93308ae5
Gibson, Ursula
a465acb0-eecd-43b9-80c3-2ffe42c48626
Peacock, Anna
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Ren, Haonan, Shen, Li, Wu, Dong, Aktaş, Ozan, Hawkins, T., Ballato, John, Gibson, Ursula and Peacock, Anna (2019) Nonlinear optical properties of polycrystalline silicon core fibers from telecom wavelengths into the mid-infrared spectral region. Optical Materials Express, 9 (3), 1271-1279. (doi:10.1364/OME.9.001271).

Record type: Article

Abstract

Polycrystalline silicon core fibers (SCFs) fabricated via the molten core drawing (MCD) method are emerging as a flexible optoelectronic platform. Here, the optical transmission properties of MCD SCFs that have been tapered down to a few micrometer-sized core dimensions are characterized from the telecom band to the mid-infrared spectal regime. The SCFs exhibit low linear losses on the order of a few dB/cm over the entire wavelength range. Characterization of the two-photon absorption coefficient (βTPA) and nonlinear refractive index (n2) of the SCFs reveals values consistent with previous measurements of single crystal silicon materials, indicating the high optical quality of the polysilicon core material. The high nonlinear figure of merit obtained for wavelengths above 2 μm highlight the potential for these fibers to find application in infrared nonlinear photonics.

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More information

Accepted/In Press date: 14 November 2018
e-pub ahead of print date: 19 February 2019
Published date: 1 March 2019

Identifiers

Local EPrints ID: 430461
URI: http://eprints.soton.ac.uk/id/eprint/430461
PURE UUID: 7623f7ee-1391-46a2-85d6-3b8246ec2807
ORCID for Ozan Aktaş: ORCID iD orcid.org/0000-0002-2255-7761
ORCID for Anna Peacock: ORCID iD orcid.org/0000-0002-1940-7172

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Date deposited: 01 May 2019 16:30
Last modified: 19 Jun 2020 00:38

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