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Development of an OPO-Based Lidar System and Differential Absorption Measurements of MethaneAn optical parametric oscillator (OPO) ground-based lidar system in the wavelength region of 1.45 - 4 pm for the remote measurement of methane will be described. The laser transmitter consists of an injection-seeded ND:YAG laser which pumps an OPO. The OPO output is tunable from 1.45 - 4 pm, with a bandwidth less than 500 MHz, and a pulse energy of 1 to 3 mJ at 3.29 microns. The receiver is cart-mounted and consists of a 14" telescope with 1.57 and 3.29 micron detector channels. A fast oscilloscope is used for data acquisition. The system performance will be tested through measurements of sources of atmospheric methane.
Document ID
20000032200
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Lee, Sang W. (Hampton Univ. VA United States)
Zenker, T. (Hampton Univ. VA United States)
Chyba, T. H. (Hampton Univ. VA United States)
Date Acquired
August 19, 2013
Publication Date
February 22, 1998
Publication Information
Publication: NASA University Research Centers Technical Advances in Aeronautics, Space Sciences and Technology, Earth Systems Sciences, Global Hydrology, and Education
Volume: 2 and 3
Subject Category
Instrumentation And Photography
Funding Number(s)
CONTRACT_GRANT: NAGW-2929
CONTRACT_GRANT: NCC1-214
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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