Towards reconfigurable photonics in Ge-based platforms for nonlinear mid-infrared broadband sources (Invited Paper)
Date
2025
Authors
Perestjuk, M.
Bieganski, A.
Armand, R.
Ferhat, L.
Campos, M.
Chettri, U.
della Torre, A.
Laprais, C.
Reboud, V.
Bresson, N.
Editors
García-Blanco, S.M.
Cheben, P.
Cheben, P.
Advisors
Journal Title
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Conference paper
Citation
Proceedings of SPIE, 2025 / García-Blanco, S.M., Cheben, P. (ed./s), vol.13369, pp.133690E-1-133690E-7
Statement of Responsibility
Marko Perestjuk, Adam Bieganski Rémi Armanda, Lamine Ferhata, Miguel Campos, Ujjal Chettri, Alberto della Torre, Capucine Laprais, Vincent Reboud, Nicolas Bresson, Pierre Brianceau, Jean-Michel Hartmann, Guanghui Ren, Andreas Boes, Thach Nguyen, Arnan Mitchell, Sébastien Cueff, Christelle Monat, Christian Grillet
Conference Name
Integrated Optics: Devices, Materials, and Technologies XXIX (25 Jan 2025 - 31 Jan 2025 : San Francisco, CA)
Abstract
Mid-infrared (MIR 3-15 μm) photonics is a burgeoning scientific and technological field with wide potential application domains including pollution detection, environmental monitoring, security, safety, astrophysics and many more...One of the key aspect is that many important molecules have fundamental ro-vibrational absorption lines in the MIR. An appealing approach, to create power efficient, sensitive, precise, compact molecular sensing devices is to develop an on-chip MIR platform integrating a bright and broadband light source, such as an integrated supercontinuum or a Kerr micro-comb. Gebased platform (e.g. silicon germanium) has emerged as an attractive platform for nonlinear MIR photonics. We report on our latest progress on reconfigurable Ge-based photonics for bright and broadband MIR sources. We demonstrate that Phase change materials, like Sb2S3, are suitable for reconfigurable supercontinuum generation. We also report Ge-based ring resonators with quality factors reaching up to one million which is highly promising for power efficient MIR microcomb generation.
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© 2025 SPIE