High-suppression-ratio silicon bandpass filter using apodized subwavelength grating coupler

Boyu Liu; Yong Zhang; Yu He; Xinhong Jiang; Ciyuan Qiu; Yikai Su

2017 Conference on Lasers and Electro-Optics Pacific Rim
(Optica Publishing Group, 2017),
paper s1944

High-suppression-ratio silicon bandpass filter using apodized subwavelength grating coupler

Boyu Liu, Yong Zhang, Yu He, Xinhong Jiang, Ciyuan Qiu, and Yikai Su

Conference on Lasers and Electro-Optics/Pacific Rim 2017

Singapore Singapore
31 July–4 August 2017
ISBN: 978-1-5090-6290-4

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Poster Session III (PSIII)

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B. Liu, Y. Zhang, Y. He, X. Jiang, C. Qiu, and Y. Su, "High-suppression-ratio silicon bandpass filter using apodized subwavelength grating coupler," in 2017 Conference on Lasers and Electro-Optics Pacific Rim, (Optica Publishing Group, 2017), paper s1944.

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Abstract

We experimentally demonstrate a compact silicon contradirectional coupler with high sidelobe suppression by using apodized subwavelength grating waveguide. A suppression ratio of higher than 20 dB is achieved with a ~100-μm coupling length.

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