Single-mode mid-infrared lasers for gas sensing in the 2-4um range
| Autor: | Gupta, J.A., Barrios, P.J., Bezinger, A., Waldron, P., Ventrudo, B.F., Lapointe, J., Poitras, D., Storey, C. |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Infrared devices
Fabry Perot lasers Gas detection Interband laser diodes Laser absorption spectroscopy Single-mode lasers Chemical detection Laser modes Absorption spectroscopy Active regions External cavity Semiconducting gallium Single mode Distributed feedback lasers Midinfrared lasers Distributed feedback grating Trace-gas sensing Optics Gallium alloys Gas detectors Infrared lasers Photonics Molecular beams Wavelength ranges InGaAsSb Molecular beam epitaxy Gas sensing |
| Popis: | Type-I interband laser diodes were developed for trace gas sensing applications in the 2-4um wavelength range. The devices were grown by molecular beam epitaxy on GaSb substrates using InGaAsSb/Al(In)GaAsSb active regions. Tunable, single-mode lasers were produced using distributed feedback grating processing or by incorporating Fabry-Perot lasers in an external cavity configuration. Sensitive gas detection was demonstrated using these lasers in tunable-diode laser absorption spectroscopy. © 2011 IEEE. 2011 ICO International Conference on Information Photonics, IP 2011, 18 May 2011 through 20 May 2011, Ottawa, ON |
| Databáze: | OpenAIRE |
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