SiN integrated photonic components in the visible to near-infrared spectral region

Author:

Sanna MatteoORCID,Baldazzi AlessioORCID,Piccoli Gioele1ORCID,Azzini StefanoORCID,Ghulinyan Mher1ORCID,Pavesi LorenzoORCID

Affiliation:

1. Centre for Sensors and Devices

Abstract

Integrated photonics has emerged as one of the most promising platforms for quantum applications. The performances of quantum photonic integrated circuits (QPIC) necessitate a demanding optimization to achieve enhanced properties and tailored characteristics with more stringent requirements with respect to their classical counterparts. In this study, we report on the simulation, fabrication, and characterization of a series of fundamental components for photons manipulation in QPIC based on silicon nitride. These include crossing waveguides, multimode-interferometer-based integrated beam splitters (MMIs), asymmetric integrated Mach-Zehnder interferometers (MZIs) based on MMIs, and micro-ring resonators. Our investigation revolves primarily around the visible to near-infrared spectral region, as these integrated structures are meticulously designed and tailored for optimal operation within this wavelength range. By advancing the development of these elementary building blocks, we aim to pave the way for significant improvements in QPIC in a spectral region only little explored so far.

Funder

HORIZON EUROPE European Research Council

Publisher

Optica Publishing Group

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