Title :
Tunable narrow linewidth laser source for a methane lidar
Author :
Li, Steven ; Riris, Haris ; Numata, Kenji ; Wu, Stewart ; Poulios, Demetrios ; Ramanathan, Anand ; Abshire, James ; Krainak, Michael
Author_Institution :
Goddard Space Flight Center, NASA, Greenbelt, MD, USA
Abstract :
A high efficiency, narrow linewidth tunable laser source is developed for greenhouse trace gas remote sensing. It features broad, continuous tuning range at 1570-1655 nm and 3291 nm with narrow linewidth (500 MHz) and high spectral purity. This laser is based on seeded optical parametric generator (OPG) technology. Several trace gas species were continuously detected for 72 hours in an open path environment. We also present our recent airborne experiment result based on this laser technology.
Keywords :
atmospheric composition; atmospheric techniques; organic compounds; remote sensing by laser beam; spectral line breadth; greenhouse trace gas remote sensing; methane lidar; open path environment; optical parametric generator technology; spectral purity; tunable narrow linewidth laser source; wavelength 1570 nm to 1655 nm; wavelength 3291 nm; Erbium-doped fiber lasers; Gas lasers; Laser beams; Laser excitation; Measurement by laser beam; Pump lasers; Semiconductor lasers;
Conference_Titel :
Aerospace Conference, 2012 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4577-0556-4
DOI :
10.1109/AERO.2012.6187178
