DP-QPSK Coherent Detection Using 2D Grating Coupled Silicon Based Receiver

Ching-Wei Peng; Chi-Wai Chow; Pin-Cheng Kuo; Guan-Hong Chen; Chien-Hung Yeh; Jyehong Chen; Yinchieh Lai

doi:10.1109/JPHOT.2020.3043592

IEEE Photonics Journal (Jan 2021)

DP-QPSK Coherent Detection Using 2D Grating Coupled Silicon Based Receiver

Ching-Wei Peng,
Chi-Wai Chow,
Pin-Cheng Kuo,
Guan-Hong Chen,
Chien-Hung Yeh,
Jyehong Chen,
Yinchieh Lai

Affiliations

Ching-Wei Peng: Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Chi-Wai Chow: ORCiD; Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Pin-Cheng Kuo: Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Guan-Hong Chen: Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Chien-Hung Yeh: ORCiD; Department of Photonics, Feng Chia University, Taichung, Taiwan
Jyehong Chen: Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan
Yinchieh Lai: ORCiD; Department of Photonics, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan

DOI: https://doi.org/10.1109/JPHOT.2020.3043592
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 5

Abstract

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We propose and demonstrate a 100 Gbit/s silicon photonic (SiPh) coherent receiver (Rx) with advanced digital signal processing (DSP) for dual-polarization quadrature-phase-shift-keying (DP-QPSK) transmission. It employs integrated 2D polarization-splitting grating couplers (2D-GCs), modified hybrid mixers and high speed silicon-germanium (SiGe) photodiodes (PDs). The 2D-GC replaced the polarization beam splitters and rotators needed in traditional coherent Rx. Moreover, the SiGe PD has the bandwidth >50 GHz.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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