Subwavelength grating waveguide devices for telecommunications applications

Chen, Lawrence R. and Wang, Junjia and Naghdi, Behnam and Glesk, Ivan (2019) Subwavelength grating waveguide devices for telecommunications applications. IEEE Journal of Selected Topics in Quantum Electronics, 25 (3). 8200111. ISSN 1077-260X (https://doi.org/10.1109/JSTQE.2018.2879015)

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Abstract

Subwavelength grating (SWG) waveguides in silicon-on-insulator are emerging as an enabling technology for implementing compact, high-performance photonic integrated devices and circuits for signal processing and sensing applications. We provide an overview of recent work on developing wavelength selective SWG waveguide filters based on Bragg gratings, ring resonators, and contra-directional couplers, as well as optical delay lines for applications in optical communications and microwave photonics. These components increase the SWG waveguide component toolbox and can be used to realize more complex photonic integrated circuits with enhanced or new functionality