Tunable microwave photonic filter based on silicon nitride MZI-assist micro-ring resonator

Sha Tang; Yanfeng Zhang; Zeru Wu; Lidan Zhou; Lin Liu; Yujie Chen; Siyuan Yu; Siyuan Yu

Asia Communications and Photonics Conference (ACPC) 2019
OSA Technical Digest (Optica Publishing Group, 2019),
paper M3E.4

Tunable microwave photonic filter based on silicon nitride MZI-assist micro-ring resonator

Sha Tang, Yanfeng Zhang, Zeru Wu, Lidan Zhou, Lin Liu, Yujie Chen, and Siyuan Yu

Asia Communications and Photonics Conference 2019

Chengdu China
2–5 November 2019
ISBN: 978-1-943580-70-5

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Integrated Microwave Photonics II (M3E)

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S. Tang, Y. Zhang, Z. Wu, L. Zhou, L. Liu, Y. Chen, and S. Yu, "Tunable microwave photonic filter based on silicon nitride MZI-assist micro-ring resonator," in Asia Communications and Photonics Conference (ACPC) 2019, OSA Technical Digest (Optica Publishing Group, 2019), paper M3E.4.

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Abstract

We study a tunable microwave photonic filter by a MZI-assist MRR structure with a high thermo-optic tuning efficiency utilizing SiN_x material platform, showing a wide central frequency tuning range over a FSR of 50 GHz, with a tuning efficiency of 0.0115 nm/mW, thanks to the cantilever adiabatic waveguide structure. A maximum extinction ratio of 22 dB at 1553.46 nm wavelength with the high quality factor of 1.2×10⁵ can be achieved by tuning the coupling rate between the bus waveguide and the ring resonator.

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