Mid-Infrared Quantum Cascade Lasers With Nonuniformly Tapered Waveguides
| Autor: | Piotr Gutowski, Maciej Sakowicz, Emilia Pruszyńska-Karbownik, Krzysztof Michalak, Kamil Janus, Aleksandr Kuzmicz |
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| Rok vydání: | 2019 |
| Předmět: |
Brightness
Materials science Convex geometry business.industry Physics::Optics 02 engineering and technology Laser Atomic and Molecular Physics and Optics law.invention 020210 optoelectronics & photonics Optics law Cascade 0202 electrical engineering electronic engineering information engineering Physics::Accelerator Physics Light beam Quantum cascade laser business Quantum Power density |
| Zdroj: | Journal of Lightwave Technology. 37:2324-2327 |
| ISSN: | 1558-2213 0733-8724 |
| DOI: | 10.1109/jlt.2019.2903263 |
| Popis: | In this paper, we present a theoretical and experimental analysis of mid-infrared (4.7 μm) quantum cascade laser waveguides with different taper waveguides geometries: linear, convex, and concave tapers. We have calculated and measured brightness of the optical beam and maximal power density on the laser front mirror for different widths and lengths of the taper. Convex geometry shows the best performance and the highest powers were obtained. |
| Databáze: | OpenAIRE |
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