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

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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.
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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