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.

  • Item type:Article
    ID code:54038
    Dates:
    Date
    Event
    1 April 2015
    Published
    19 March 2015
    Published Online
    18 February 2015
    Accepted
    Notes:© 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:08 Apr 2024 22:27
    URI:https://strathprints.strath.ac.uk/id/eprint/54038
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