Atmospheric CO2 Sensing with a Random Modulation Continuous Wave Integrated Path Differential Absorption Lidar

Mathieu Quatrevalet, Xiao Ai, Antonio Perez-Serrano, Pawel Adamiec, Juan Barbero, Andreas Fix, Jose Manuel G Tijero, Ignacio Esquivias, John G Rarity, Gerhard Ehret

Research output: Contribution to journalArticle (Academic Journal)peer-review

9 Citations (Scopus)
397 Downloads (Pure)

Abstract

We propose an integrated path differential absorption (IPDA) lidar system based on a hybrid master oscillator power amplifier (MOPA) and single photon counting detection for column-averaged measurements of atmospheric CO 2 . The random modulated continuous wave (RM-CW) approach has been selected as the best suited to the average output power obtained from hybrid and monolithically integrated MOPAs. A compact RM-CW IPDA lidar instrument has been designed and fabricated. High-sensitivity and low-noise single photon counting has been used for the receiver. Colocated 2-km horizontal trial path experiments with a pulsed system and in situ measurements were performed for comparison. The RM-CW IPDA lidar instrument shows a relative accuracy of the order of about ±10% or ±40 parts per million CO 2 concentration in absolute terms. The measurements qualitatively demonstrate the feasibility of CO 2 IPDA measurements with an RM-CW system.
Original languageEnglish
Article number5300311
Number of pages11
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume23
Issue number2
Early online date20 Oct 2016
DOIs
Publication statusPublished - Mar 2017

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