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Coverage of coherent output states in parallel-coupled dual-racetrack microresonators

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Abstract

Parallel-coupled dual-racetrack silicon microresonators can potentially be used for quadrature amplitude modulation. We analyze the evolution of the coverage of coherent output states of devices with varying device parameters. As the coupling constant increases, the coverage of coherent states initially improves then degrades, which is unexpected based on a prior preference for overcoupling. Increasing the quality factor generally improves the coverage. The influence of the refractive index modulation is found to saturate after reaching a certain level. Analytic formulas are developed to provide insight into the coverage evolution. These results are fairly robust against a small asymmetry of device parameters.

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DOI:10.3788/col201614.102304

所属栏目:Optical devices

收稿日期:2016-06-28

录用日期:2016-08-26

网络出版日期:2016-09-30

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Wei Jiang:College of Engineering and Applied Sciences &National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 21 0093, ChinaDepartment of Electrical and Computer Engineering, Rutgers University, Piscataway, New Jersey 08854, USAInstitute for Advanced Materials, Devices, and Nanotechnology, Rutgers University, Piscataway, New Jersey 08854, USA
Yating Zhou:Department of Electrical and Computer Engineering, Rutgers University, Piscataway, New Jersey 08854, USAInstitute for Advanced Materials, Devices, and Nanotechnology, Rutgers University, Piscataway, New Jersey 08854, USASchool of Mathematics and Physics &Chemical Engineering, Changzhou Institute of Technology, Changzhou 213002, China

联系人作者:联系作者(zhouyt@czu.cn)

备注:This work was supported in part by the Jiangsu Province Natural Science Foundation of China (No. BK20141168) and the Jiangsu Overseas Research & Training Program for University Prominent Young & Middle-aged Teachers and Presidents.

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引用该论文

Wei Jiang, Yating Zhou, "Coverage of coherent output states in parallel-coupled dual-racetrack microresonators," Chinese Optics Letters 14(10), 102304 (2016)

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