Mid-infrared QPM laser sources for high-precision atmospheric trace gas measurements

Dirk Richter; Petter Weibring; Alan Fried; James G. Walega; Osamu Tadanaga; Masaki Asobe; Hiroyuki Suzuki

doi:10.1117/12.762294

13 February 2008 Mid-infrared QPM laser sources for high-precision atmospheric trace gas measurements

Dirk Richter, Petter Weibring, Alan Fried, James G. Walega, Osamu Tadanaga, Masaki Asobe, Hiroyuki Suzuki

Proceedings Volume 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII; 68750J (2008) https://doi.org/10.1117/12.762294
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

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.

Citation Download Citation

Dirk Richter, Petter Weibring, Alan Fried, James G. Walega, Osamu Tadanaga, Masaki Asobe, and Hiroyuki Suzuki "Mid-infrared QPM laser sources for high-precision atmospheric trace gas measurements", Proc. SPIE 6875, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 68750J (13 February 2008); https://doi.org/10.1117/12.762294

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KEYWORDS

Absorption

Mid-IR

Laser crystals

Crystals

Laser sources

Waveguides

Sensors

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