Optical signal processing based on silicon photonics waveguide Bragg gratings: review

Abstract

This paper reviews the work done by researchers at INRS and UBC in the field of integrated microwave photonics (IMWPs) using silicon based waveguide Bragg gratings (WBGs). The grating design methodology is discussed in detail, including practical device fabrication considerations. On-chip implementations of various fundamental photonic signal processing units, including Fourier transformers, Hilbert transformers, ultrafast pulse shapers etc., are reviewed. Recent progress on WBGs-based IMWP subsystems, such as true time delay elements, phase shifters, real time frequency identification systems, is also discussed.

Keywords

silicon photonics / ultrafast optical signal processing / integrated microwave photonics (IMWPs)

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Acknowledgements

We thank CMC Microsystems for enabling the fabrication of the silicon chips via ePIXfab, Lumerical Solutions Inc. for the design software and the NSERC SiEPIC CREATE Program. This research was supported in part by research grants from the FRQNT (Québec) and NSERC (Canada) agencies.

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2018 Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature