Integrated photonic tunable basic units using dual-drive directional couplers.

基于双驱动定向耦合器的集成光子可调谐基本单元。

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ID: 86728
2019
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Abstract
Photonic integrated circuits based on waveguide meshes and multibeam interferometers call for large-scale integration of Tunable Basic Units (TBUs) that feature beam splitters and waveguides. This units are loaded with phase actuators to provide complex linear processing functionalities based on optical interference and can be reconfigured dynamically. Here, we propose and experimentally demonstrate, to the best of our knowledge, for the first time, a thermally actuated Dual-Drive Directional Coupler (DD-DC) design integrated on a silicon nitride platform. It operates both as a standalone optical component providing arbitrary optical beam splitting and common phase as well as a low loss and potentially low footprint TBU. Finally, we report the experimental demonstration of the first integrated triangular waveguide mesh arrangement using DD-DC based TBUs and provide an extended analysis of its performance and scalability.
基于波导网格和多光束干涉仪的光子集成电路，需要大规模集成包含分束器与波导的可调谐基本单元（TBU）。这些单元集成了相位致动器，能够基于光干涉提供复杂的线性处理功能，并可进行动态重构。在此，据我们所知，我们首次提出并在氮化硅平台上实验验证了一种热致动双驱动定向耦合器（DD-DC）设计。它既可作为提供任意光分束和共模相位的独立光学元件工作，亦可作为低损耗且具有紧凑尺寸潜力的TBU。最后，我们报道了首个采用基于DD-DC的TBU所构建的集成三角形波导网格结构的实验验证，并对其性能和可扩展性进行了拓展分析。
Reference Key
prezlpez2019integratedoptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Pérez-López, Daniel;Gutierrez, Ana M;Sánchez, Erica;DasMahapatra, Prometheus;Capmany, José;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.038071
URL
Keywords
spectroscopy biomedical sensor control setup mode competition optical design

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