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Broadband 2 × 2 multimode interference coupler for mid-infrared wavelengths

Broadband 2 × 2 multimode interference coupler for mid-infrared wavelengths
Broadband 2 × 2 multimode interference coupler for mid-infrared wavelengths
Beam splitters are core components of photonic integrated circuits and are often implemented with multimode interference couplers. While these devices offer high performance, their operational bandwidth is still restrictive for sensing applications in the mid-infrared wavelength range. Here we experimentally demonstrate a subwavelength-structured 2×2 multimode interference coupler with high performance in the 3.1−3.7 µm range, doubling the bandwidth of a conventional device.
0146-9592
5300-5303
Stirling, Callum, John
b0730967-9d4f-4b1e-8cd2-00cc62e42bf2
Halir, Robert
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Sánchez-Postigo, Alejandro
81499766-b4c1-48ce-8143-9bdd49621d81
Qu, Zhibo
5b686d3d-a818-4322-be84-2d7e456e6c43
Reynolds, Jamie Dean
96faa744-02ee-458c-8e48-953ea9e54afe
Soler-Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Ortega-Moñux, Alejandro
3ff2b179-63f9-43e9-b46a-9b0eaedb7a16
Wangüemert-Pérez, Gonzalo
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Molina-Fernández, Íñigo
b71dcf74-f0e9-4cbe-8be1-28edde61ef56
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796
Stirling, Callum, John
b0730967-9d4f-4b1e-8cd2-00cc62e42bf2
Halir, Robert
514995cb-5ab3-4c08-9be3-b8e6baca2698
Sánchez-Postigo, Alejandro
81499766-b4c1-48ce-8143-9bdd49621d81
Qu, Zhibo
5b686d3d-a818-4322-be84-2d7e456e6c43
Reynolds, Jamie Dean
96faa744-02ee-458c-8e48-953ea9e54afe
Soler-Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Ortega-Moñux, Alejandro
3ff2b179-63f9-43e9-b46a-9b0eaedb7a16
Wangüemert-Pérez, Gonzalo
322c4ae7-24cc-4d5c-9f01-c340b032fcb2
Molina-Fernández, Íñigo
b71dcf74-f0e9-4cbe-8be1-28edde61ef56
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796

Stirling, Callum, John, Halir, Robert, Sánchez-Postigo, Alejandro, Qu, Zhibo, Reynolds, Jamie Dean, Soler-Penadés, Jordi, Murugan, Ganapathy Senthil, Ortega-Moñux, Alejandro, Wangüemert-Pérez, Gonzalo, Molina-Fernández, Íñigo, Mashanovich, Goran and Nedeljković, Miloš (2021) Broadband 2 × 2 multimode interference coupler for mid-infrared wavelengths. Optics Letters, 46 (21), 5300-5303. (doi:10.1364/OL.439985).

Record type: Article

Abstract

Beam splitters are core components of photonic integrated circuits and are often implemented with multimode interference couplers. While these devices offer high performance, their operational bandwidth is still restrictive for sensing applications in the mid-infrared wavelength range. Here we experimentally demonstrate a subwavelength-structured 2×2 multimode interference coupler with high performance in the 3.1−3.7 µm range, doubling the bandwidth of a conventional device.

Text
Broadband 2 × 2 multimode interference coupler for mid-infrared wavelengths - Accepted Manuscript
Available under License Creative Commons Attribution.
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More information

Published date: 19 October 2021
Additional Information: Funding Information: Engineering and Physical Sciences Research Council (EP/N013247/1); Royal Academy of Engineering (RF201617/16/33); Consejer?a de Econom?a, Conocimiento, Empresas y Universidad, Junta de Andaluc?a (P18-RT-793).

Identifiers

Local EPrints ID: 452500
URI: http://eprints.soton.ac.uk/id/eprint/452500
ISSN: 0146-9592
PURE UUID: 11900e28-43d1-45f9-8561-5aa76762bab3
ORCID for Callum, John Stirling: ORCID iD orcid.org/0000-0001-5274-2100
ORCID for Jamie Dean Reynolds: ORCID iD orcid.org/0000-0002-0072-0134
ORCID for Jordi Soler-Penadés: ORCID iD orcid.org/0000-0002-1706-8533
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273
ORCID for Miloš Nedeljković: ORCID iD orcid.org/0000-0002-9170-7911

Catalogue record

Date deposited: 11 Dec 2021 11:21
Last modified: 28 Apr 2022 02:16

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Contributors

Author: Callum, John Stirling ORCID iD
Author: Robert Halir
Author: Alejandro Sánchez-Postigo
Author: Zhibo Qu
Author: Jamie Dean Reynolds ORCID iD
Author: Jordi Soler-Penadés ORCID iD
Author: Alejandro Ortega-Moñux
Author: Gonzalo Wangüemert-Pérez
Author: Íñigo Molina-Fernández

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