Atmospheric CO2 sensing using Scheimpflug-lidar based on a 157-µm fiber source | Zendy

Jim Larsson | Zendy; Joakim Bood | Zendy; Can Xu | Zendy; Yang Xiong | Zendy; Robert Lindberg | Zendy; Fredrik Laurell | Zendy; Mikkel Brydegaard | Zendy

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Atmospheric CO₂ sensing using Scheimpflug-lidar based on a 157-µm fiber source

Author(s) -

Jim Larsson,

Joakim Bood,

Can Xu,

Yang Xiong,

Robert Lindberg,

Fredrik Laurell,

Mikkel Brydegaard

Publication year - 2019

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.017348

Subject(s) - lidar , optics , laser , materials science , remote sensing , scheimpflug principle , optoelectronics , physics , geology , cornea

A molecular laser-radar system, based on the Scheimpflug principle, has been constructed and demonstrated for remote sensing of atmospheric CO 2 concentrations using Differential Absorption Lidar (DIAL) in the (30012←00001) absorption band. The laser source is a Continues Wave (CW) Distributed-FeedBack (DFB) diode laser seeding an Erbium-doped fiber amplifier, emitting narrowband (3 MHz) tunable radiation with an output power of 1.3 W at 1.57 µm. The laser beam is expanded and transmitted to the atmosphere. The atmospheric backscattered signal is collected with a Newtonian telescope and detected with a linear InGaAs array detector satisfying the Scheimpflug condition. We present range-resolved measurements of atmospheric CO 2 concentration from a test range of 2 km located in the city of Lund, Sweden. We discuss and provide scalable results for CO 2 profiling with the Scheimpflug-lidar method.

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