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Open AccessArticle

Programmable SCOW Mesh Silicon Photonic Processor for Linear Unitary Operator

State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai Key Lab of Navigation and Location Services, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Micromachines 2019, 10(10), 646; https://doi.org/10.3390/mi10100646
Received: 27 August 2019 / Revised: 20 September 2019 / Accepted: 24 September 2019 / Published: 26 September 2019
(This article belongs to the Special Issue Silicon Photonics Bloom)
Universal unitary multiport interferometers (UMIs) can perform any arbitrary unitary transformation to a vector of input optical modes, which are essential for a wide range of applications. Most UMIs are realized by fixed photonic circuits with a triangular or a rectangular architecture. Here, we present the implementation of an N × N rectangular UMI with a programmable photonic processor based on two-dimensional meshes of self-coupled optical waveguide (SCOW) resonant structures. Our architecture shows a high tolerance to the unbalanced loss upon interference. This work enriches the functionality of the SCOW mesh photonic processors, which are promising for field-programmable photonic arrays. View Full-Text
Keywords: photonic processors; unitary transformation; silicon photonics photonic processors; unitary transformation; silicon photonics
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Lu, L.; Zhou, L.; Chen, J. Programmable SCOW Mesh Silicon Photonic Processor for Linear Unitary Operator. Micromachines 2019, 10, 646.

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