Single mode, short cavity, Pb-salt diode lasers operating in the 5, 10, and 30 µm spectral regions

Pb-salt diode lasers are being used as frequency-tunable infrared sources in high resolution spectroscopy and heterodyne detection applications. Recent advances in short-cavity, stripe geometry laser configurations have led to significant increases in maximum CW operating temperature, single mode operation, and increased single mode tuning range. This paper describes short cavity, stripe geometry lasers operating in the 5, 10, and 30 μm spectral regions, with single mode tuning ranges of over 6 cm^-1.