Year: 2025
Type: article
Abstract: We report ring resonators on a silicon germanium on silicon platform operating in the mid‐infrared wavelength range around 3.5–4.6 µm with quality factors reaching up to one million. Advances in fabrication technology enable us to demonstrate such high Q ‐factors, which put silicon germanium at the forefront of mid‐infrared integrated photonic platforms. The achievement of high Q is attested by the observation of degeneracy lifting between clockwise (CW) and counter‐clockwise (CCW) resonances, as well as optical bistability due to an efficient power buildup in the rings.
Source: Nanophotonics
Authors: Marko Perestjuk, Rémi Armand, Miguel Gerardo Sandoval Campos, Lamine Ferhat, Vincent Reboud, Nicolas Bresson, Jean‐Michel Hartmann, Vincent Mathieu, Guanghui Ren, Andreas Boes, Arnan Mitchell, Christelle Monat, Christian Grillet
Institutions: Lyon 1 Université, École Centrale de Lyon, Centre National de la Recherche Scientifique, Institut des Nanotechnologies de Lyon, Institut National des Sciences Appliquées de Lyon, École d'Ingénieurs en Chimie et Sciences du Numérique, RMIT University, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Grenoble, Laboratoire d'Électronique des Technologies de l'Information, Université Grenoble Alpes, The University of Adelaide
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,995
Awards: G1190173965, Excellence, International, Intersectoral and Interdisciplinary doctoral training at Ecole Centrale Lyon in cotutelle with royal melbourne institute of technology AUStralia, G2471692569, G2930997671, G3855841895, G4642289518, Hybrid fiber/ Chip-based Mid-IR supercontinuum source FULly reconfigurable, Optical Frequency Combs On a Chip, nonlinear integrated Mid-IR SiGe-based frequency COMB, G6324547391, G6803667113, ARC Centre of Excellence in Optical Microcombs for Breakthrough Science
OpenAlex ID: W4408692160