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Jiang W, Hu J, Mao S, et al. Subwavelength grating based mode (de)multiplexer for 3D photonic integrated circuits. Appl Opt. 2021;60(5):1164-1170doi: 10.1364/AO.416116.
Jiang, W., Hu, J., Mao, S., Feng, J., Hao, X., & Zhang, Y. (2021). Subwavelength grating based mode (de)multiplexer for 3D photonic integrated circuits. Applied optics, 60(5), 1164-1170. https://doi.org/10.1364/AO.416116
Jiang, Weifeng, et al. "Subwavelength grating based mode (de)multiplexer for 3D photonic integrated circuits." Applied optics vol. 60,5 (2021): 1164-1170. doi: https://doi.org/10.1364/AO.416116
Jiang W, Hu J, Mao S, Feng J, Hao X, Zhang Y. Subwavelength grating based mode (de)multiplexer for 3D photonic integrated circuits. Appl Opt. 2021 Feb 10;60(5):1164-1170. doi: 10.1364/AO.416116. PMID: 33690546.
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Appl Opt. 2021 Feb 10;60(5):1164-1170. doi: 10.1364/AO.416116.

Subwavelength grating based mode (de)multiplexer for 3D photonic integrated circuits.

Applied optics

Weifeng Jiang, Jinzhu Hu, Siqiang Mao, Jiaqi Feng, Xiaoyu Hao, Yingjia Zhang

PMID: 33690546 DOI: 10.1364/AO.416116

Abstract

A broadband three-dimensional (3D) mode (de) multiplexer [(De)MUX] is proposed based on the subwavelength grating (SWG) for 3D photonic integrated circuits (PICs). The proposed 3D mode (De)MUX consists of three SWG waveguides on two vertical layers. The coupling strength and operating bandwidth can be increased benefitting from both the subwavelength structure and offset between bus and access SWGs. The proposed 3D mode (De)MUX is optimized based on the 3D full-vectorial finite difference time domain method. The 1-dB bandwidths of the optimized device are over >300, 107, and 128 nm for demultiplexing

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