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Proceedings Paper

Dynamically controlling optical beams with programmable silicon photonic meshes (Conference Presentation)
Author(s): Francesco Morichetti; Fabio Toso; Francesco Zanetto; Giorgio Ferrari; Marco Sampietro; Andrea Melloni; David A. B. Miller

Paper Abstract

We report on the use of programmable silicon photonic meshes of thermally tuneable interferometers to manipulate dynamically guided-wave and free-space optical beams on a chip through arbitrary linear transformations. Several applications are presented, including automatic reconstruction and unscrambling of mixed optical modes; forming and steering of free-space optical beams; coupling of free-space beams from arbitrary directions of arrival to single-mode waveguides; phase front reconstruction and beaming through scattering media. Automatic self-configuration of the meshes is achieved by exploiting built-in transparent monitors, beam labelling and thermal crosstalk cancellation strategies, enabling scalability to photonic meshes with a large number of interferometers.

Paper Details

Date Published: 10 March 2020
Proc. SPIE 11283, Integrated Optics: Devices, Materials, and Technologies XXIV, 1128310 (10 March 2020);
Show Author Affiliations
Francesco Morichetti, Politecnico di Milano (Italy)
Fabio Toso, Politecnico di Milano (Italy)
Francesco Zanetto, Politecnico di Milano (Italy)
Giorgio Ferrari, Politecnico di Milano (Italy)
Marco Sampietro, Politecnico di Milano (Italy)
Andrea Melloni, Politecnico di Milano (Italy)
David A. B. Miller, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 11283:
Integrated Optics: Devices, Materials, and Technologies XXIV
Sonia M. García-Blanco; Pavel Cheben, Editor(s)

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