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12 February 1993 Tunable diode laser based monitoring of atmospheric gases - Modern techniques
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The paper describes the development of spectroscopic methods for monitoring atmospheric gases, which are based on tunable diode lasers (TDLs). The problem of complexity of TDL-based systems was solved using several approaches. These include the development of a pulse-periodical mode of laser operation with high-frequency scanning rate; simplification of optical and cryogenic parts using mid-IR optical fibers; and the development of specialized electronics and automatic measurements methods. A block diagram of the system is presented together with tables listing information on the sensitivity limitations of the TDL-based spectrometer and detectivity levels for various atmospheric gases.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrian I. Kouznetsov, Alexander I. Nadezhdinskii, and Eugene V. Stepanov "Tunable diode laser based monitoring of atmospheric gases - Modern techniques", Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993);

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