Mid-infrared integrated resonators on a III-V platform with Q-factors beyond half a million

Fuente: arXiv
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Autores principales: Lucia, Luca, Ngo, Gia Long, Urbain, Mathilde, Pantzas, Konstantinos, Beaudoin, Gregoire, Pirotta, Stefano, Manceau, Jean-Michel, Sagnes, Isabelle, Colombelli, Raffaele, Bousseksou, Adel
Formato: Preprint
Publicado: 2025
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author Lucia, Luca
Ngo, Gia Long
Urbain, Mathilde
Pantzas, Konstantinos
Beaudoin, Gregoire
Pirotta, Stefano
Manceau, Jean-Michel
Sagnes, Isabelle
Colombelli, Raffaele
Bousseksou, Adel
author_facet Lucia, Luca
Ngo, Gia Long
Urbain, Mathilde
Pantzas, Konstantinos
Beaudoin, Gregoire
Pirotta, Stefano
Manceau, Jean-Michel
Sagnes, Isabelle
Colombelli, Raffaele
Bousseksou, Adel
contents We demonstrate mid-IR integrated race-track resonators on a III-V semiconductor platform,InGaAs core epitaxially grown on InP. We have performed a complete characterization of the optical propagation losses at wavelength = 4.6 um and wavelength = 8.5 um, two representative wavelengths for the 1st and 2nd atmospheric transparency windows. We measured losses of 1 dB/cm (TE polarization) and 1.3 dB/cm (TM polarization) at 8.5 um. Substantially lower losses, 0.28 dB/cm, were measured at wavelength = 4.6 um (TM polarization). We then implemented racetrack resonators with straight evanescent couplers. We obtained loaded quality factors larger than 600.000 at wavelength = 4.6 um. These results are promising towards the development of non-linear mid-IR integrated devices with Q factors beyond a million, where the onset of stimulated parametric processes could be reachable.
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publishDate 2025
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spellingShingle Mid-infrared integrated resonators on a III-V platform with Q-factors beyond half a million
Lucia, Luca
Ngo, Gia Long
Urbain, Mathilde
Pantzas, Konstantinos
Beaudoin, Gregoire
Pirotta, Stefano
Manceau, Jean-Michel
Sagnes, Isabelle
Colombelli, Raffaele
Bousseksou, Adel
Optics
Applied Physics
We demonstrate mid-IR integrated race-track resonators on a III-V semiconductor platform,InGaAs core epitaxially grown on InP. We have performed a complete characterization of the optical propagation losses at wavelength = 4.6 um and wavelength = 8.5 um, two representative wavelengths for the 1st and 2nd atmospheric transparency windows. We measured losses of 1 dB/cm (TE polarization) and 1.3 dB/cm (TM polarization) at 8.5 um. Substantially lower losses, 0.28 dB/cm, were measured at wavelength = 4.6 um (TM polarization). We then implemented racetrack resonators with straight evanescent couplers. We obtained loaded quality factors larger than 600.000 at wavelength = 4.6 um. These results are promising towards the development of non-linear mid-IR integrated devices with Q factors beyond a million, where the onset of stimulated parametric processes could be reachable.
title Mid-infrared integrated resonators on a III-V platform with Q-factors beyond half a million
topic Optics
Applied Physics
url https://arxiv.org/abs/2508.08168