MWGS-1

Physical Sciences Inc. (PSI) has developed this for the laser-based sensing of gases. This instrument is based on recent advances in two areas: diode-pumped solid-state lasers, which produce high average powers from a compact device, and engineered non-linear optical materials such as periodically poled lithium niobate (PPLN), which can efficiently convert the fixed wavelength of a solid-state laser into one or more tunable output wavelengths. Using a three-zone design for the PPLN crystal, near-infrared radiation from a pump laser is converted into radiation at three different wavelengths in the mid-infrared. These wavelengths are chosen to provide good atmospheric transmission along with selective detection of the target species. The wavelengths can be tuned by changing the temperature of the PPLN crystal.

Availability: Commercially Available