Laser Gas Detection (LGD), based on Tunable Diode Laser Spectroscopy (TDLS), provides a solution to many gas analysis challenges in emission monitoring and process control. The technology offers unique advantages like precise optical, contactless measurements, excellent target gas selectivity and subppm-level detectivity.

Axetris’ laser gas detection modules are stand-alone, ready-touse OEM subsystems for selective detection and monitoring of gases. The sensor is based on a technology called “TDLS” – or Tunable Diode Laser Spectroscopy, which has proven its validity in high-end laboratory and process control applications. It uses a laser to scan the specific absorption lines of a target gas with an extremely high resolution, which enables a precise measurement of the gas concentration with a very high selectivity. Axetris’ proprietary approach to TDLS leverages this technology to low-cost, high-volume gas detection & monitoring applications: The use of low-cost telecom-type laser diodes as light source, combined with Axetris’ intellectual property of reference channel-free devices, reduces the gas sensor to a set of generic components and enables significant cost synergies across applications.