Abstract

A differential absorption lidar has been built to measure CO2 concentration in the atmosphere. The transmitter is a pulsed single-frequency Ho:Tm:YLF laser at a 2.05-μm wavelength. A coherent heterodyne receiver was used to achieve sensitive detection, with the additional capability for wind profiling by a Doppler technique. Signal processing includes an algorithm for power measurement of a heterodyne signal. Results show a precision of the CO2 concentration measurement of 1%–2% 1σ standard deviation over column lengths ranging from 1.2 to 2.8 km by an average of 1000 pulse pairs. A preliminary assessment of instrument sensitivity was made with an 8-h-long measurement set, along with correlative measurements with an in situ sensor, to determine that a CO2 trend could be detected.

© 2004 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Side-line tunable laser transmitter for differential absorption lidar measurements of CO2: design and application to atmospheric measurements

Grady J. Koch, Jeffrey Y. Beyon, Fabien Gibert, Bruce W. Barnes, Syed Ismail, Mulugeta Petros, Paul J. Petzar, Jirong Yu, Edward A. Modlin, Kenneth J. Davis, and Upendra N. Singh
Appl. Opt. 47(7) 944-956 (2008)

Coherent 2 μm differential absorption and wind lidar with conductively cooled laser and two-axis scanning device

Shoken Ishii, Kohei Mizutani, Hirotake Fukuoka, Takayoshi Ishikawa, Baron Philippe, Hironari Iwai, Tetsuo Aoki, Toshikazu Itabe, Atsushi Sato, and Kazuhiro Asai
Appl. Opt. 49(10) 1809-1817 (2010)

Differential absorption lidar for volcanic CO2 sensing tested in an unstable atmosphere

Manuel Queißer, Mike Burton, and Luca Fiorani
Opt. Express 23(5) 6634-6644 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription