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Accession Number N20120010214
Title Ground Demonstration of Planetary Gas Lidar Based on Optical Parametric Amplifier.
Publication Date Jan 2012
Media Count 10p
Personal Author H. Riris J. Abshire K. Numata M. Krainak S. Li S. Wu S. R. Kawa
Abstract We report on the development effort of a nanosecond-pulsed optical parametric amplifier (OPA) for remote trace gas measurements for Mars and Earth. The OPA output has high spectral purity and is widely tunable both at near-infrared and mid-infrared wavelengths, with an optical-optica1 conversion efficiency of up to approx 39 %. Using this laser source, we demonstrated open-path measurements of CH4 (3291 nm and 1651 nm), CO2 (1573 nm), H2O (1652 nm), and CO (4764 nm) on the ground. The simplicity, tunability. and power scalability of the OPA make it a strong candidate for general planetary lidar instruments, which will offer important information on the origins of the planet's geology, atmosphere, and potential for biology.
Keywords Atmospheric composition
Differential absorption lidar
Infrared spectra
Laser applications
Laser outputs
Light amplifiers
Optical radar
Parametric amplifiers
Power amplifiers
Remote sensing
Trace elements

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 46C - Optics & Lasers
Corporate Author Goddard Space Flight Center, Greenbelt, MD.
Document Type Journal article
Title Note N/A
NTIS Issue Number 1226
Contract Number N/A

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