High-performance silicon Bragg filters exploiting sub-wavelength and symmetry engineering (Conference Presentation)

Dorian Oser; Xavier Le Roux; Florent Mazeas; Diego Pérez-Galacho; Daniel Benedikovic; Elena Durán-Valdeiglesias; Vladyslav Vakarin; Olivier Alibart; Pavel Cheben; Sébastien Tanzilli; Laurent Labonte; Delphine Marris-Morini; Eric Cassan; Laurent Vivien; Carlos A. Alonso-Ramos

doi:10.1117/12.2508644

4 March 2019 High-performance silicon Bragg filters exploiting sub-wavelength and symmetry engineering (Conference Presentation)

Dorian Oser, Xavier Le Roux, Florent Mazeas, Diego Pérez-Galacho, Daniel Benedikovic, Elena Durán-Valdeiglesias, Vladyslav Vakarin, Olivier Alibart, Pavel Cheben, Sébastien Tanzilli, Laurent Labonte, Delphine Marris-Morini, Eric Cassan, Laurent Vivien, Carlos A. Alonso-Ramos

Author Affiliations +

Proceedings Volume 10921, Integrated Optics: Devices, Materials, and Technologies XXIII; 109211F (2019) https://doi.org/10.1117/12.2508644
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Bragg filters stand as a key building blocks of the silicon-on-insulator (SOI) photonics platform, allowing the implementation of advanced on-chip signal manipulation. However, achieving narrowband Bragg filters with large rejection levels is often hindered by fabrication constraints and imperfections. Here, we present a new generation of high-performance Bragg filters that exploit subwavelength and corrugation symmetry engineering to overcome bandwidth-rejection trade-off in state-of-the-art implementations. We experimentally show flexible control over the width and depth of the Bragg resonance, unlocking new tools for the implementation of notch filters with arbitrary bandwidth and rejection level. These results pave the way for the implementation of high-performance on-chip wavelength filters with a great potential for nonlinear-based applications, e.g. next generation Si-based photon-pair sources for quantum photonic circuits.

Conference Presentation

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Dorian Oser, Xavier Le Roux, Florent Mazeas, Diego Pérez-Galacho, Daniel Benedikovic, Elena Durán-Valdeiglesias, Vladyslav Vakarin, Olivier Alibart, Pavel Cheben, Sébastien Tanzilli, Laurent Labonte, Delphine Marris-Morini, Eric Cassan, Laurent Vivien, and Carlos A. Alonso-Ramos "High-performance silicon Bragg filters exploiting sub-wavelength and symmetry engineering (Conference Presentation)", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 109211F (4 March 2019); https://doi.org/10.1117/12.2508644

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KEYWORDS

Silicon

Electronic filtering

Linear filtering

Photonic integrated circuits

Photonics

Silicon photonics

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