Lasers for Gas Detection

Lasermate Group, Inc. offers GD-series DFB lasers specially designed for gas detection, such as CH₄, H₂S, NH₃, H₂O, CO, CO₂, C₂H₄, HF, C₂H₂, etc. Constructed with features of narrow linewidth up to 2MHz, ultra compact dimensions, high power and wavelength stability, and no jump mode output in operating current range, our GD-series lasers are widely used in optical fiber gas detection systems, seed light source, fiber optical sensing field, fiber communications, and many other applications.

Laser Wavelengths for Gas Detection

Gas Composition	Chemical Formula	Absorption Spectrum
Methane	CH₄	1650.9 nm, 1653.7 nm
Hydrogen sulfide	H₂S	1578 nm, 1590 nm
Ammonia	NH₃	1512 nm
Carbon monoxide	CO	1567 nm
Carbon dioxide	CO₂	1580 nm
Acetylene	C₂H₂	1532.68 nm
Ethylene	C₂H₄	1620 nm, 1625 nm, 1627 nm
Hydrogen fluoride	HF	1268.7 nm, 1273 nm, 1305 nm, 1312 nm
Water	H₂O	1368 nm, 1392 nm