One Million Quality Factor Integrated Ring Resonators in the Mid-Infrared

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

arXiv · 2412.10269

One Million Quality Factor Integrated Ring Resonators in the Mid-Infrared

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

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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.

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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. 2024-12-13. One Million Quality Factor Integrated Ring Resonators in the Mid-Infrared. https://arxiv.org/abs/2412.10269

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