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Proceedings Paper

Mid-infrared QPM laser sources for high-precision atmospheric trace gas measurements
Author(s): Dirk Richter; Petter Weibring; Alan Fried; James G. Walega; Osamu Tadanaga; Masaki Asobe; Hiroyuki Suzuki
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Paper Abstract

Tunable, mid-infrared lasers based on quasi-phase matched bulk PPLN crystals have successfully been implemented on airborne atmospheric research platforms and enabling a detectable fractional absorbance of about 5E-7, which equates to single digit part-per-trillion detectable concentrations for many atmospherically important trace gases. Emerging development of ridge waveguide type PPLN crystals show promising performance characteristics, including 100 times better conversion efficiency and good beam quality, which enable more compact system designs. In addition, the flexibility afforded by QPM structured materials to generate coherent mid-infrared radiation, permit unique multi-wavelength operation and detection techniques.

Paper Details

Date Published: 13 February 2008
PDF: 5 pages
Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 68750J (13 February 2008); doi: 10.1117/12.762294
Show Author Affiliations
Dirk Richter, National Ctr. for Atmospheric Research (United States)
Petter Weibring, National Ctr. for Atmospheric Research (United States)
Alan Fried, National Ctr. for Atmospheric Research (United States)
James G. Walega, National Ctr. for Atmospheric Research (United States)
Osamu Tadanaga, NTT Corp. (Japan)
Masaki Asobe, NTT Corp. (Japan)
Hiroyuki Suzuki, NTT Corp. (Japan)


Published in SPIE Proceedings Vol. 6875:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
Peter E. Powers, Editor(s)

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