INJECTION INASSB INASSBP LASERS FOR HIGH- RESOLUTION SPECTROSCOPY/

Experimental results are presented showing the possibility of construc ting semiconductor injection InAsSb/InAsSbP lasers tunable in the spec tral range 3.2 - 3.4 mum. Lasers of this type were used in the tempera ture interval 77 - 160 K for high precision analysis of molecular spec tra. The obtained absorption spectra of methane and ethylene molecules enabled us to determine the most important spectroscopic properties o f these lasers, such as the range of continuous frequency tuning, rate of tuning, spectral resolution, and signal to noise ratio.