Temperature dependence of gas-detection sensitivity of InGaAsSb/AlGaAsSb distributed feedback lasers at 2396 nm
Electronics Letters（2012）
Abstract
The HF gas detection sensitivity of GaSb-based distributed feedback lasers was studied in order to evaluate the potential use of operating temperature to control the laser output power in field applications. Measurements were made in the 2f wavelength modulation spectroscopy mode to monitor a prominent HF absorption feature at 2396 nm. An Allan variance analysis indicates that the best sensitivity...
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Key words
aluminium compounds,cooling,distributed feedback lasers,gallium arsenide,gas sensors,heat treatment,hydrogen compounds,III-V semiconductors,indium compounds,infrared spectra,measurement by laser beam,optical control,optical modulation,optical sensors,temperature control,thermoelectricity
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