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Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding

Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding
Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding
We present several fundamental photonic building blocks based on suspended silicon waveguides supported by a lateral cladding comprising subwavelength grating metamaterial. We discuss the design, fabrication, and characterization of waveguide bends, multimode interference devices and Mach-Zehnder interferometers for the 3715 - 3800 nm wavelength range, demonstrated for the first time in this platform. The waveguide propagation loss of 0.82 dB/cm is reported, some of the lowest loss yet achieved in silicon waveguides for this wavelength range. These results establish a direct path to ultimately extending the operational wavelength range of silicon wire waveguides to the entire transparency window of silicon.
1094-4087
22908-22916
Soler Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Ortega-Moñux, Alejandro
e8cde80a-bdd2-4fcc-bc03-bd50c1054f45
Nedeljković, Milos
b64e21c2-1b95-479d-a35c-3456dff8c796
Wangüemert-Perez, Alejandro
5f526ff4-9bc5-42ca-930f-4d646bfbc0d8
Halir, Robert
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Khokhar, Ali
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Qu, Zhibo
ff376b43-4352-4bd2-8420-c1c6cfccd45c
Molina-Fernández, Iñigo
02d4924e-d6fb-4540-8403-17ad8ae9c942
Cheben, Pavel
ab8ffd13-bc5c-44cb-88ed-605e3c347848
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Soler Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Ortega-Moñux, Alejandro
e8cde80a-bdd2-4fcc-bc03-bd50c1054f45
Nedeljković, Milos
b64e21c2-1b95-479d-a35c-3456dff8c796
Wangüemert-Perez, Alejandro
5f526ff4-9bc5-42ca-930f-4d646bfbc0d8
Halir, Robert
e3f8d90b-0067-4e1a-a6b1-0217c342dd55
Khokhar, Ali
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Qu, Zhibo
ff376b43-4352-4bd2-8420-c1c6cfccd45c
Molina-Fernández, Iñigo
02d4924e-d6fb-4540-8403-17ad8ae9c942
Cheben, Pavel
ab8ffd13-bc5c-44cb-88ed-605e3c347848
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051

Soler Penadés, Jordi, Ortega-Moñux, Alejandro, Nedeljković, Milos, Wangüemert-Perez, Alejandro, Halir, Robert, Khokhar, Ali, Alonso-Ramos, Carlos, Qu, Zhibo, Molina-Fernández, Iñigo, Cheben, Pavel and Mashanovich, Goran (2016) Suspended silicon mid-infrared waveguide devices with subwavelength grating metamaterial cladding. Optics Express, 24 (20), 22908-22916. (doi:10.1364/OE.24.022908).

Record type: Article

Abstract

We present several fundamental photonic building blocks based on suspended silicon waveguides supported by a lateral cladding comprising subwavelength grating metamaterial. We discuss the design, fabrication, and characterization of waveguide bends, multimode interference devices and Mach-Zehnder interferometers for the 3715 - 3800 nm wavelength range, demonstrated for the first time in this platform. The waveguide propagation loss of 0.82 dB/cm is reported, some of the lowest loss yet achieved in silicon waveguides for this wavelength range. These results establish a direct path to ultimately extending the operational wavelength range of silicon wire waveguides to the entire transparency window of silicon.

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More information

Accepted/In Press date: 22 August 2016
e-pub ahead of print date: 23 September 2016
Published date: 3 October 2016
Organisations: Optoelectronics Research Centre, Photonic Systems Circuits & Sensors

Identifiers

Local EPrints ID: 397393
URI: https://eprints.soton.ac.uk/id/eprint/397393
ISSN: 1094-4087
PURE UUID: 449f201b-23a1-44f6-8cde-8aca8d43466e
ORCID for Jordi Soler Penadés: ORCID iD orcid.org/0000-0002-1706-8533
ORCID for Milos Nedeljković: ORCID iD orcid.org/0000-0002-9170-7911

Catalogue record

Date deposited: 07 Sep 2016 09:01
Last modified: 10 Dec 2019 06:29

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