Tunable Diode Lasers: Expanding the Horizon for Laser Absorption Spectroscopy

Alexander A. Kachanov, Eric R. Crosson and Barbara A. Paldus

Recent advances in broadly tunable telecommunications lasers will enable new approaches to laser absorption spectroscopy and greatly expand the ability of existing laser-based systems to perform trace gas detection. Researchers have already begun adopting these lasers in tunable diode laser absorption spectroscopy, photo-acoustic absorption spectroscopy and cavity ring-down spectroscopy.

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