Broadband Polarization Splitter-Rotator and the Application in WDM Receiver

Yingxuan Zhao; Chao Qiu; Aimin Wu; Haiyang Huang; Jun Li; Zhen Sheng; Wei Li; Xi Wang; Fuwan Gan

doi:10.1109/JPHOT.2018.2886268

IEEE Photonics Journal (Jan 2019)

Broadband Polarization Splitter-Rotator and the Application in WDM Receiver

Yingxuan Zhao,
Chao Qiu,
Aimin Wu,
Haiyang Huang,
Jun Li,
Zhen Sheng,
Wei Li,
Xi Wang,
Fuwan Gan

Affiliations

Yingxuan Zhao: ORCiD; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Chao Qiu: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Aimin Wu: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Haiyang Huang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Jun Li: ORCiD; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Zhen Sheng: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Wei Li: ORCiD; State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Xi Wang: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
Fuwan Gan: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China

DOI: https://doi.org/10.1109/JPHOT.2018.2886268
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 10

Abstract

Read online

Polarization sensitivity is a severe problem in photonic integration devices and chips based on the high-index contrast Si/SiO2 system. In this paper, a broadband silicon polarization splitter-rotator (PSR) comprised of a bi-level taper and a counter-tapered coupler is proposed with a large fabrication tolerance. The measured insertion loss is lower than 0.7 dB/0.73 dB for the wavelength range from 1470 to 1580 nm with a crosstalk lower than -12.1 dB/-14.7 dB for TE and TM polarization input, respectively. By integrating the PSR with silicon arrayed waveguide gratings and germanium photodetectors (PDs) on a single chip, a polarization-insensitive wavelength-division-multiplexing (WDM) receiver is demonstrated with a polarization-dependent loss as low as 1.21 dB. High-speed operations are also achieved with clear eyes at 10 Gb/s.

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

About the journal

Abstract

Keywords