Complexity-reduction for the Digital-filtered AWGR-based 2D IR Beam-steered OWC System by using Non-integer Oversampling

Liuyan Chen; Chin Wan Oh; Jeffrey Lee; Xuebing Zhang; Ton Koonen

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper Tu5.55

Complexity-reduction for the Digital-filtered AWGR-based 2D IR Beam-steered OWC System by using Non-integer Oversampling

Liuyan Chen, Chin Wan Oh, Jeffrey Lee, Xuebing Zhang, and Ton Koonen

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Joint Poster Session I (Tu5)

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L. Chen, C. W. Oh, J. Lee, X. Zhang, and T. Koonen, "Complexity-reduction for the Digital-filtered AWGR-based 2D IR Beam-steered OWC System by using Non-integer Oversampling," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Tu5.55.

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Abstract

Digital Nyquist filtering improves the capacity of our 12.5-GHz channel-spaced 6-GHz bandwidth-limited AWGR-based 2D infrared beam-steered OWC system but introduces additional complexity. Experiments demonstrate the practicability of non-integer oversampling at 1.1× symbol rate with root-raised-cosine filtering to reduce data converter sampling rate and power consumption.

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