Tunable multi-channel dropping filters based on double-waveguide parallel-coupled microring resonators

Chunyu Zhang; Yundong Zhang; Yongfeng Wu; Hui Li; Changqiu Yu; Ping Yuan

doi:10.1117/12.2245168

31 October 2016 Tunable multi-channel dropping filters based on double-waveguide parallel-coupled microring resonators

Chunyu Zhang, Yundong Zhang, Yongfeng Wu, Hui Li, Changqiu Yu, Ping Yuan

Proceedings Volume 10019, Optoelectronic Devices and Integration VI; 1001908 (2016) https://doi.org/10.1117/12.2245168
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

The filtering characteristic of double-waveguide parallel-coupled microring resonators is theoretically investigated in this paper. Transfer matrix of the structure consisting of arbitrary number of rings is deduced. Number of very narrow symmetrical transparent channels within each stop-band can increase to any integer by extending rings of the structure, and any one or more channels can be continuously tuned and switched on/off selectively by adjusting the additional phase shift between adjacent rings. The structure is compact, reliable, flexible and tunable, and has potential vital applications for optical switches in dense wave division multiplexing (DWDM) systems.

Citation Download Citation

Chunyu Zhang, Yundong Zhang, Yongfeng Wu, Hui Li, Changqiu Yu, and Ping Yuan "Tunable multi-channel dropping filters based on double-waveguide parallel-coupled microring resonators", Proc. SPIE 10019, Optoelectronic Devices and Integration VI, 1001908 (31 October 2016); https://doi.org/10.1117/12.2245168

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