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Updated: Aug 24, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
Published on: December 18, 2015
Infrared laser heterodyne systems
B Parvitte1, V Zéninari, C Thiébeaux
1Groupe de Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 6089, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687 Reims Cedex 2, France. bertrand.parvitte@univ-reims.fr
Abstract:
This paper gives a review of mid-infrared laser heterodyne systems. The advantages of using heterodyne detection are described and the different techniques corresponding to the choice of the local oscillator are presented. A thorough discussion of the gas laser heterodyne systems is followed by the presentation of tunable diode laser systems capabilities. Many experiments in the mid-infrared region are reviewed covering the astronomical and atmospheric, ground-based and airborne investigations as well as the laboratory measurements.
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