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High-efficiency mid-infrared wavelength conversion in silicon waveguides

High-efficiency mid-infrared wavelength conversion in silicon waveguides
High-efficiency mid-infrared wavelength conversion in silicon waveguides
High-efficiency wavelength conversion into the 2 μm region has been achieved through Raman enhanced four-wave mixing in a planar silicon waveguide. By aligning the FWM phase-matching conditions with the Raman gain bandwidth, a wavelength conversion efficiency of −25 dB was achieved with a continuous-wave pump power of only ∼45 mW. The maximum Raman enhancement in this hybrid wavelength conversion process is ∼7 dB. Simulations show that by further optimizing the planar waveguide dispersion profile, the wavelength conversion efficiency could be increased to ∼−11 dB using a standard continuous-wave pump source.
2378-0967
Chen, T.
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Huang, M.
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Sun, S.
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Stirling, C.
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Mitchell, C.
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Nedeljkovic, M.
b64e21c2-1b95-479d-a35c-3456dff8c796
Mashanovich, G.Z.
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Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Chen, T.
89fe4451-13b0-497c-9b9d-ee7a5156341d
Huang, M.
79b89531-8bb9-4ab8-889a-c85b3b64d684
Sun, S.
2fbabb2a-926a-48ac-a136-ec9fc90e2a67
Stirling, C.
2b1db9ce-c03c-4380-b371-a92748d7c4b9
Mitchell, C.
0e48c936-a405-434d-818a-d83e382aa826
Nedeljkovic, M.
b64e21c2-1b95-479d-a35c-3456dff8c796
Mashanovich, G.Z.
c806e262-af80-4836-b96f-319425060051
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc

Chen, T., Huang, M., Sun, S., Stirling, C., Mitchell, C., Nedeljkovic, M., Mashanovich, G.Z. and Peacock, A.C. (2025) High-efficiency mid-infrared wavelength conversion in silicon waveguides. APL Photonics, 10, [116104]. (doi:10.1063/5.0288541).

Record type: Article

Abstract

High-efficiency wavelength conversion into the 2 μm region has been achieved through Raman enhanced four-wave mixing in a planar silicon waveguide. By aligning the FWM phase-matching conditions with the Raman gain bandwidth, a wavelength conversion efficiency of −25 dB was achieved with a continuous-wave pump power of only ∼45 mW. The maximum Raman enhancement in this hybrid wavelength conversion process is ∼7 dB. Simulations show that by further optimizing the planar waveguide dispersion profile, the wavelength conversion efficiency could be increased to ∼−11 dB using a standard continuous-wave pump source.

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Accepted/In Press date: 21 October 2025
e-pub ahead of print date: 5 November 2025
Learn more about Zepler Institute for Photonics and Nanoelectronics research

Identifiers

Local EPrints ID: 506508
URI: http://eprints.soton.ac.uk/id/eprint/506508
DOI: doi:10.1063/5.0288541
ISSN: 2378-0967
PURE UUID: 7a1efa61-1517-4905-807f-f9e4571472c1
ORCID for M. Huang: ORCID iD orcid.org/0000-0002-5233-8519
ORCID for S. Sun: ORCID iD orcid.org/0000-0002-8308-2077
ORCID for C. Mitchell: ORCID iD orcid.org/0000-0001-9773-8842
ORCID for M. Nedeljkovic: ORCID iD orcid.org/0000-0002-9170-7911
ORCID for G.Z. Mashanovich: ORCID iD orcid.org/0000-0003-2954-5138
ORCID for A.C. Peacock: ORCID iD orcid.org/0000-0002-1940-7172

Catalogue record

Date deposited: 10 Nov 2025 17:59
Last modified: 11 Nov 2025 03:05

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Contributors

Author: T. Chen
Author: M. Huang ORCID iD
Author: S. Sun ORCID iD
Author: C. Stirling
Author: C. Mitchell ORCID iD
Author: M. Nedeljkovic ORCID iD
Author: G.Z. Mashanovich ORCID iD
Author: A.C. Peacock ORCID iD

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