17 February 2010 Seeded nanosecond optical parametric generator for trace gas measurements
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We report on the development effort of a nanosecond-pulsed seeded optical parametric generator (OPG) for remote trace gas measurements. The seeded OPG output light is single frequency with high spectral purity and is widely tunable both at 1600nm and 3300nm with an optical-optical conversion efficiency of ~40%. We demonstrated simultaneous tuning over the methane (CH4) absorption line at idler wavelength, 3270.4nm, and carbon dioxide (CO2) absorption line at signal wavelength, 1578.2nm. In this paper, we will also discuss open-path atmospheric measurements with this newly developed laser source.
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Kenji Numata, Steve Li, Haris Riris, Stewart Wu, Antonios Seas, Anthony Yu, Michael Krainak, James Abshire, "Seeded nanosecond optical parametric generator for trace gas measurements", Proc. SPIE 7582, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications IX, 75820K (17 February 2010); doi: 10.1117/12.843747; https://doi.org/10.1117/12.843747

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