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

Cantarella, Giuseppe; Strain, Michael J.

doi:10.3390/app6110316

Open AccessFeature PaperArticle

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

by

Giuseppe Cantarella

and

Michael J. Strain

^*

Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G1 1RD, UK

^*

Author to whom correspondence should be addressed.

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

Submission 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)

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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

^{\circ}

C and injection wavelength range of

1.5

nm, nearly 3 orders of magnitude greater than the resonant cavity linewidth.

Keywords: silicon micro-resonators; Bragg gratings; non-linearities; stabilization

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MDPI and ACS Style

Cantarella, G.; Strain, M.J. A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators. Appl. Sci. 2016, 6, 316. https://doi.org/10.3390/app6110316

AMA Style

Cantarella G, Strain MJ. A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators. Applied Sciences. 2016; 6(11):316. https://doi.org/10.3390/app6110316

Chicago/Turabian Style

Cantarella, Giuseppe, and Michael J. Strain. 2016. "A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators" Applied Sciences 6, no. 11: 316. https://doi.org/10.3390/app6110316

APA Style

Cantarella, G., & Strain, M. J. (2016). A Micro-Processor-Based Feedback Stabilization Scheme for High-Q, Non-Linear Silicon Resonators. Applied Sciences, 6(11), 316. https://doi.org/10.3390/app6110316

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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

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