Single-mode mid-infrared lasers for gas sensing in the 2-4um range
- Gupta, J.A.
- Barrios, P.J.
- Bezinger, A.
- Waldron, P.
- Ventrudo, B.F.
- Lapointe, J.
- Poitras, D.
- Storey, C.
Publication date
January 2011
DOIAbstract
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. \ua9 2011 IEEE.Peer reviewed: YesNRC publication: Ye
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