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Germanium-on-silicon Vernier-effect photonic microcavities for the mid-infrared

Germanium-on-silicon Vernier-effect photonic microcavities for the mid-infrared
Germanium-on-silicon Vernier-effect photonic microcavities for the mid-infrared
We present Vernier-effect photonic microcavities based on a germanium-on-silicon technology platform, operating around the mid-infrared wavelength of 3.8 μm. Cascaded racetrack resonators have been designed to operate in the second regime of the Vernier effect, and typical Vernier comb-like spectra have been successfully demonstrated with insertion losses of ∼5 dB, maximum extinction ratios of ∼23 dB, and loaded quality factors higher than 5000. Furthermore, add-drop racetrack resonator designed for a Vernier device has been characterized, exhibiting average insertion losses of 1 dB, extinction ratios of up to 18 dB, and a quality factor of ∼1700.
Infrared, Integrated optics devices, Resonators, Coupled resonators
610-613
Troia, Benedetto
e90140d1-2449-4ca0-b2d4-aac7a1464c5c
Soler Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Khokhar, Ali Z.
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Passaro, Vittorio M. N.
787696b6-5fbe-4ec7-9a7f-b76b132ac819
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051
Troia, Benedetto
e90140d1-2449-4ca0-b2d4-aac7a1464c5c
Soler Penadés, Jordi
f18f3619-0d71-4547-95fd-dd38c37b7adb
Khokhar, Ali Z.
2eedd1cc-8ac5-4f8e-be25-930bd3eae396
Nedeljković, Miloš
b64e21c2-1b95-479d-a35c-3456dff8c796
Alonso-Ramos, Carlos
93f2937e-a94b-4b66-b6fc-276efa88272f
Passaro, Vittorio M. N.
787696b6-5fbe-4ec7-9a7f-b76b132ac819
Mashanovich, Goran Z.
c806e262-af80-4836-b96f-319425060051

Troia, Benedetto, Soler Penadés, Jordi, Khokhar, Ali Z., Nedeljković, Miloš, Alonso-Ramos, Carlos, Passaro, Vittorio M. N. and Mashanovich, Goran Z. (2016) Germanium-on-silicon Vernier-effect photonic microcavities for the mid-infrared. Optics Letters, 41 (3), 610-613. (doi:10.1364/OL.41.000610).

Record type: Article

Abstract

We present Vernier-effect photonic microcavities based on a germanium-on-silicon technology platform, operating around the mid-infrared wavelength of 3.8 μm. Cascaded racetrack resonators have been designed to operate in the second regime of the Vernier effect, and typical Vernier comb-like spectra have been successfully demonstrated with insertion losses of ∼5 dB, maximum extinction ratios of ∼23 dB, and loaded quality factors higher than 5000. Furthermore, add-drop racetrack resonator designed for a Vernier device has been characterized, exhibiting average insertion losses of 1 dB, extinction ratios of up to 18 dB, and a quality factor of ∼1700.

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More information

Published date: 1 February 2016
Keywords: Infrared, Integrated optics devices, Resonators, Coupled resonators

Identifiers

Local EPrints ID: 416129
URI: https://eprints.soton.ac.uk/id/eprint/416129
PURE UUID: 0fcdb98b-08eb-4cb4-ae7f-a725e3d2701d
ORCID for Jordi Soler Penadés: ORCID iD orcid.org/0000-0002-1706-8533
ORCID for Miloš Nedeljković: ORCID iD orcid.org/0000-0002-9170-7911

Catalogue record

Date deposited: 05 Dec 2017 17:30
Last modified: 10 Dec 2019 01:34

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