Spectroscopic laser diodes are key components in analyzers based on tunable diode laser absorption spectroscopy (TDLAS). VCSELs and DFB lasers are available for delivery.
Single-mode VCSEL at 760 and 948 nm
Single-mode DFB laser diodes from the Heinrich Hertz Institute for Communication.
The laser wavelength is stabilized by a volume bragg grating (VBG) to +/- 0.2 nm to render it virtually temperature independent.