Tunable Q-factor silicon microring resonators for ultra-low power parametric processes
Strain, Michael J and Lacava, Cosimo and Meriggi, Laura and Cristiani, Ilaria and Sorel, Marc (2015) Tunable Q-factor silicon microring resonators for ultra-low power parametric processes. Optics Letters, 40 (7). pp. 1274-1277. ISSN 0146-9592 (https://doi.org/10.1364/OL.40.001274)
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Abstract
A compact silicon ring resonator is demonstrated that allows simple electrical tuning of the ring coupling coefficient and Q-factor and therefore the resonant enhancement of on-chip nonlinear optical processes. Fabrication-induced variation in designed coupling fraction, crucial in the resonator performance, can be overcome using this post-fabrication trimming technique. Tuning of the microring resonator across the critical coupling point is demonstrated, exhibiting a Q-factor tunable between 9000 and 96,000. Consequently, resonantly enhanced four-wave mixing shows tunable efficiency between -40 and -16.3 dB at an ultra-low on-chip pump power of 0.7 mW.
ORCID iDs
Strain, Michael J ORCID: https://orcid.org/0000-0002-9752-3144, Lacava, Cosimo, Meriggi, Laura, Cristiani, Ilaria and Sorel, Marc;-
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Item type: Article ID code: 54038 Dates: DateEvent1 April 2015Published19 March 2015Published Online18 February 2015AcceptedNotes: © 2015 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. Subjects: Science > Physics > Optics. Light Department: Faculty of Science > Physics > Institute of Photonics Depositing user: Pure Administrator Date deposited: 21 Aug 2015 10:48 Last modified: 13 Oct 2024 00:29 URI: https://strathprints.strath.ac.uk/id/eprint/54038