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Appl. Sci. 2016, 6(11), 316;

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
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]   |  


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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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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