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Development of an OPO system at 1.57 µm for integrated path DIAL measurement of atmospheric carbon dioxide

Amediek, Axel and Fix, Andreas and Wirth, Martin and Ehret, Gerhard (2008) Development of an OPO system at 1.57 µm for integrated path DIAL measurement of atmospheric carbon dioxide. Applied Physics B (92), pp. 295-302. DOI: 10.1007/s00340-008-3075-6.

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Official URL: http://www.springerlink.com/content/h3211t7744453736/

Abstract

Active remote sensing is a promising technique to close the gaps that exist in global measurement of atmospheric carbon dioxide sources, sinks and fluxes. Several approaches are currently under development. Here, an experimental setup of an integrated path differential absorption lidar (IPDA) is presented, operating at 1.57 μm using direct detection. An injection seeded KTP-OPO system pumped by a Nd:YAG laser serves as the transmitter. The seed laser is actively stabilized by means of a CO2 reference cell. The line-narrowed OPO radiation yields a high spectral purity, which is measured by means of a long path absorption cell. First measurements of diurnal variations of the atmospheric CO2 mixing ratio using a topographic target were performed and show good agreement compared to simultaneously taken measurements of an in situ device. A further result is that the required power reference measurement of each laser pulse in combination with the spatial beamquality is a critical point of this method. The system described can serve as a testbed for further investigations of special features of the IPDA technique.

Document Type:Article
Title:Development of an OPO system at 1.57 µm for integrated path DIAL measurement of atmospheric carbon dioxide
Authors:
AuthorsInstitution or Email of Authors
Amediek, AxelUNSPECIFIED
Fix, AndreasUNSPECIFIED
Wirth, MartinUNSPECIFIED
Ehret, GerhardUNSPECIFIED
Date:2008
Journal or Publication Title:Applied Physics B
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1007/s00340-008-3075-6
Page Range:pp. 295-302
Status:Published
Keywords:Lidar, IPDA, DIAL, carbon dioxide, atmosphere
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben LIDAR-Forschung und -Entwicklung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Dr.rer.nat. Axel Amediek
Deposited On:26 Aug 2008
Last Modified:20 Oct 2014 14:32

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