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Appl. Sci. 2016, 6(11), 316; doi:10.3390/app6110316

A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators

Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G1 1RD, UK
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Author to whom correspondence should be addressed.
Academic Editor: Paolo Minzioni
Received: 11 October 2016 / Revised: 20 October 2016 / Accepted: 21 October 2016 / Published: 25 October 2016
(This article belongs to the Special Issue Silicon Photonics Components and Applications)
View Full-Text   |   Download PDF [1586 KB, uploaded 25 October 2016]   |  

Abstract

Stabilization of silicon micro-resonators is a key requirement for their inclusion in larger photonic integrated circuits. In particular, thermal refractive index shift in non-linear applications can detune devices from their optimal working point. A cavity stabilization scheme using a micro-processor-based feedback control loop is presented based on a local thermal heater element on-chip. Using this method, a silicon π -phase shifted grating with a cavity Q-factor of 40k is demonstrated to operate over an ambient temperature detuning range of 40 C and injection wavelength range of 1.5 nm, nearly 3 orders of magnitude greater than the resonant cavity linewidth. View Full-Text
Keywords: silicon micro-resonators; Bragg gratings; non-linearities; stabilization silicon micro-resonators; Bragg gratings; non-linearities; stabilization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cantarella, G.; Strain, M.J. A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators. Appl. Sci. 2016, 6, 316.

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