10 January 1997 Theoretical review of modulation spectroscopy
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In recent years there has been renewed interest in using modulation spectroscopy for a variety of scientific and engineering applications. Modulation spectroscopy is often implemented with diode lasers which have the advantages of small size, non-intrusiveness, speed, and ease of use. Several theoretical frameworks have been developed to describe modulation spectroscopy and its limiting cases: frequency modulation spectroscopy (FMS), and wavelength modulation spectroscopy (WMS). In this paper we examine these frameworks and describe a general approach to modulation spectroscopy which takes into account the properties of semiconductor lasers.
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Haris Riris, Haris Riris, Clinton B. Carlisle, Clinton B. Carlisle, Russell E. Warren, Russell E. Warren, } "Theoretical review of modulation spectroscopy", Proc. SPIE 3000, Laser Diode and LED Applications III, (10 January 1997); doi: 10.1117/12.263484; https://doi.org/10.1117/12.263484

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