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Difference frequency generation laser based spectrometers

✍ Scribed by D. Richter; A. Fried; P. Weibring

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
405 KB
Volume
3
Category
Article
ISSN
1863-8880

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✦ Synopsis

Abstract

Tunable mid‐infrared laser sources are the key to precision optical trace gas detection. Difference‐frequency generation (DFG) based laser sources are among a few practical laser sources that have demonstrated ultra‐high detection sensitivities during real‐world applications when combined with appropriate signal enhancing and noise reduction spectroscopic techniques. This article will discuss the technical approaches, illustrate application examples of DFG sources, and offer perspectives to competing technologies.

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