Quantum Cascade Lasers
Laser Spectroscopy with XT-QCL

By using different mirror configurations, the QC-XT laser can be rapidly switched between different configurations, allowing rapid multi-point sampling and/or scanning.
In this study, the QC-XT proved to be superior to classic DFB-QCLs due to the broad tuning capabilities of this novel laser type. In addition, unused spectral information for data interpretation was used as an inherent stability control of the system.
- Stephan Freitag, Matthias Baer, Laura Buntzoll, Georg Ramer, Andreas Schwaighofer, Bernhard Schmauss, and Bernhard Lendl, "Polarimetric Balanced Detection: Background-Free Mid-IR Evanescent Field Laser Spectroscopy for Low-Noise, Long-term Stable Chemical Sensing", ACS Sensors DOI:10.1021/acssensors.0c01342
EPIC PHOTONICS+ virtual exhibition

Alpes Lasers will be exhibiting at the EPIC PHOTONICS+ virtual exhibition on Feb. 17-18 2021 - check this space soon for registration information!

Monitoring Water Quality using QCLs
WaterSpy is a consortium of 10 partners, including Alpes Lasers, funded by Horizon 2020, the EU Framework Programme for Research and Innovation for 2014-2020 in order to develop water quality analysis photonics technology suitable for inline, field measurements.

© CyRIC Cyprus Research & Innovation Center Ltd
At the completion of the project in 2020, the WaterSpy module was extensively tested in the labs of partners in Austria, Germany and Italy, followed by a real-world demonstration at a water treatment plant near Genoa in Italy. While a full sample analysis of 100 ml of water may take up to 3 days using current laboratory analysis systems, the WaterSpy portable device takes no more than 7 hours to conduct an equivalent analysis, and is therefore less costly. It also complies with the latest EU drinking water regulations.
This system only requires two standard Quantum Cascade Lasers to perform the analysis. Do not hesitate to contact us for more information!
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