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Jochen Seufert, Johannes Koeth, Marc Fischer, Sven Höfling, Johann P. Reithmaier, Alfred Forchel

Single Mode Quantum Cascade DFB-Lasers with Metal Bragg gratings

We have developed quantum cascade Fabry-Perot and DFB lasers based on GaAs with emission wavelengths around 9...11μm. This wavelength range is particularly suitable for the sensitive detection and monitoring of a variety of important pollutant gases such as CO₂ (9.5μm), O₃ (9.7μm), and NH₃ (10.7μm) or for investigations of liquids. The lasers are mounted on standard c-mounts and can easily be incorporated into a module. In pulsed mode these devices emit peak power levels of a few mW at Peltier temperatures and exhibit continuous wavelength tuning by temperature and current.

tm – Technisches Messen, Oldenbourg Wissenschaftsverlag

Print ISSN: 0171-8096
Volume: 72, 06/2005
Pages: 374 - 379

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