A Four-Channel DWDM Tunable Add&#x002F;Drop Demultiplexer Based on Silicon Waveguide Bragg Gratings

Debin Mu; Huiye Qiu; Jianfei Jiang; Xiaofei Wang; Zhilei Fu; Yuehai Wang; Xiaoqing Jiang; Hui Yu; Jianyi Yang

doi:10.1109/JPHOT.2019.2897359

IEEE Photonics Journal (Jan 2019)

A Four-Channel DWDM Tunable Add/Drop Demultiplexer Based on Silicon Waveguide Bragg Gratings

Debin Mu,
Huiye Qiu,
Jianfei Jiang,
Xiaofei Wang,
Zhilei Fu,
Yuehai Wang,
Xiaoqing Jiang,
Hui Yu,
Jianyi Yang

Affiliations

Debin Mu: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Huiye Qiu: Department of Mechanical and Electrical Engineering, Longyan University, Longyan, China
Jianfei Jiang: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Xiaofei Wang: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Zhilei Fu: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Yuehai Wang: ORCiD; Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Xiaoqing Jiang: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Hui Yu: ORCiD; Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China
Jianyi Yang: Institute of Microelectronics and Nanoelectronics, College of Information Science and Electronics Engineering, Zhejiang University, Hangzhou, China

DOI: https://doi.org/10.1109/JPHOT.2019.2897359
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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We demonstrate a thermally tunable four-channel add/drop demultiplexer based on silicon grating-assisted contra-directional couplers (contra-DCs) for 200 GHz dense wavelength division multiplexing (DWDM) systems. In order to obtain the narrow bandwidth and the rapid roll-off necessary for the DWDM, every wavelength channel is filtered dually by two identical contra-DCs cascaded in parallel. In addition, the phase apodization technique is utilized to suppress sidelobes. With these special designs, passbands of the four drop ports exhibit 3 and 20 dB bandwidths of 0.4 and 0.8 nm, respectively, while isolation between adjacent channels is better than 20 dB. Insertion losses at through and drop ports are 0.6 and ~2.6 dB, respectively. The maximal wavelength-tunable range is up to 25 nm.

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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