Abstract
We report on a direct detection differential absorption lidar (DIAL), designed for remote detection of CH4 and CO2. The system is based on a single-frequency optical parametric oscillator/amplifier system, tunable in the 1.57-1.65 µm range. The DIAL system, called NAOMI GAZL, was tested on a controlled gas release facility in October 2018.
Highlights
Remote detection, localization, and quantification of gaseous species is a topic of high interest in the frame of various applications, from safety to environmental or industrial monitoring
The laser pulses are backscattered by the atmosphere, collected and detected by the differential absorption lidars (DIAL) receiver, and a gas plume can be localized and quantified along the line of sight by comparing the backscattered ON and OFF signals
NAOMI GAZL emitter is based on an amplified nested cavity optical parametric oscillator (NesCOPO)
Summary
Localization, and quantification of gaseous species is a topic of high interest in the frame of various applications, from safety to environmental or industrial monitoring In such context, differential absorption lidars (DIAL) are promising since they can be designed to address different species, especially using emitters in the infrared where most chemicals of interest display characteristic absorption bands. The emitter is based on a pulsed, nanosecond, single frequency, nested cavity optical parametric oscillator (NesCOPO) [3], amplified to 16 mJ, and implemented in a direct detection lidar system.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
