Monolithic Integration of Mid-Infrared Quantum Cascade Lasers and Frequency Combs with Passive Waveguides
| Autor: | Ruijun Wang, Philipp Täschler, Zhixin Wang, Emilio Gini, Mattias Beck, Jérôme Faist |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
FOS: Physical sciences
Physics::Optics Applied Physics (physics.app-ph) Physics - Applied Physics Electrical and Electronic Engineering quantum cascade laser integrated photonics frequency comb mid-infrared spectroscopy on-chip spectroscopy Atomic and Molecular Physics and Optics Astrophysics::Galaxy Astrophysics Optics (physics.optics) Biotechnology Electronic Optical and Magnetic Materials Physics - Optics |
| Zdroj: | ACS Photonics, 9 (2) |
| ISSN: | 2330-4022 |
| Popis: | Mid-infrared semiconductor lasers in photonic integrated circuits are of considerable interest for a variety of industrial, environmental, and medical applications. However, photonic integration technologies in the mid-infrared lag far behind the near-infrared range. Here we present the monolithic integration of mid-infrared quantum cascade lasers with low-loss passive waveguides via butt-coupling. The passive waveguide losses are experimentally evaluated to be only 1.2 ± 0.3 dB/cm, with negligible butt-coupling losses. We demonstrate continuous-wave lasing at room temperature of these active-to-passive waveguide coupled devices. Moreover, we report a frequency comb operation paving the way toward on-chip, mid-infrared, dual-comb sensors. ISSN:2330-4022 |
| Databáze: | OpenAIRE |
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