Automated Wavelength Alignment in a 4 × 4 Silicon Thermo-Optic Switch Based on Dual-Ring Resonators

Qingming Zhu; Xinhong Jiang; Yanping Yu; Ruiyuan Cao; Hongxia Zhang; Danping Li; Yanbo Li; Li Zeng; Xuhan Guo; Yong Zhang; Ciyuan Qiu

doi:10.1109/JPHOT.2018.2791561

IEEE Photonics Journal (Jan 2018)

Automated Wavelength Alignment in a 4 × 4 Silicon Thermo-Optic Switch Based on Dual-Ring Resonators

Qingming Zhu,
Xinhong Jiang,
Yanping Yu,
Ruiyuan Cao,
Hongxia Zhang,
Danping Li,
Yanbo Li,
Li Zeng,
Xuhan Guo,
Yong Zhang,
Ciyuan Qiu

Affiliations

Qingming Zhu: ORCiD; State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Xinhong Jiang: ORCiD; State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Yanping Yu: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Ruiyuan Cao: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Hongxia Zhang: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Danping Li: Network Research Department, Huawei Technologies Co., Ltd., Shenzhen, China
Yanbo Li: Network Research Department, Huawei Technologies Co., Ltd., Shenzhen, China
Li Zeng: Network Research Department, Huawei Technologies Co., Ltd., Shenzhen, China
Xuhan Guo: ORCiD; State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Yong Zhang: State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China
Ciyuan Qiu: ORCiD; State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China

DOI: https://doi.org/10.1109/JPHOT.2018.2791561
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 11

Abstract

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We propose and experimentally demonstrate an automated resonance wavelength alignment scheme for an O-band 4 × 4 thermo-optic optical switch using dual-ring resonators. In this scheme, a new control algorithm based on saddle point searching is employed to align dual-input switching elements (SEs) and therefore the 4 × 4 switch. The proposed scheme is proven effective by demonstrating eight routing configurations for two 10-Gb/s data channels. The insertion losses of the three-stage SEs are ≤6.9 dB, and the crosstalk values are below -13.6 dB. Besides, the tolerance of the switch to the wavelength misalignment between the two optical input signals is measured. Negligible performance degradations are observed when the two channels are spaced by 0.05 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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