Back to Search
Start Over
An OPO-Based Lidar System for Differential Absorption Measurements of Methane in the 3 micron region
- Source :
- Nineteenth International Laser Radar Conference. (Part 2)
- Publication Year :
- 1998
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1998.
-
Abstract
- A ground-based lidar system in the wavelength region of 1.45-4 microns for the remote measurement of methane is described. The laser transmitter consists of an injection-seeded Nd:YAG laser which pumps an OPO (optical parametric oscillator). The OPO output is tunable from 1.45-4 microns, 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.
- Subjects :
- Instrumentation And Photography
Subjects
Details
- Language :
- English
- Issue :
- Part 2
- Database :
- NASA Technical Reports
- Journal :
- Nineteenth International Laser Radar Conference
- Notes :
- NCC1-214, , NAGw-2929
- Publication Type :
- Report
- Accession number :
- edsnas.19980236796
- Document Type :
- Report