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Ridge waveguide couplers with leaky mode resonator-like wavelength responses

journal contribution
posted on 2024-11-02, 22:37 authored by Steffen Schoenhardt, Andreas Boes, Giang Thach NguyenGiang Thach Nguyen, Arnan MitchellArnan Mitchell
Integrated photonic resonators based on bound states in the continuum (BICs) on the silicon-on-insulator (SOI) platform have the potential for novel, mass-manufacturable resonant devices. While the nature of BIC-based ridge resonators requires the resonators to be extended in the (axial) propagation direction of the resonant mode, the requirement for excitation from the quasi-continuum extends the resonator structures also in the lateral dimensions, resulting in large device footprints. To overcome this footprint requirement, we investigate the translation of BIC-based ridge resonators into a guided mode system with finite lateral dimensions. We draw analogies between the resulting waveguide system and the BIC-based resonators and numerically demonstrate that, analog to the BIC-based resonators, such a waveguide system can exhibit spectrally narrow-band inversion of its transmissive behavior.

History

Journal

Optics Express

Volume

31

Issue

1

Start page

626

End page

634

Total pages

9

Publisher

Optica Publishing Group

Place published

Washington, DC, USA

Language

English

Copyright

© 2022 Optica Publishing Group

Former Identifier

2006119862

Esploro creation date

2023-03-19

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