Upconversion-based lidar measurements of atmospheric CO2

Lasse Høgstedt, Andreas Fix, Martin Wirth, Christian Pedersen, Peter Tidemand-Lichtenberg

Research output: Contribution to journalJournal articleResearchpeer-review

370 Downloads (Pure)

Abstract

For the first time an upconversion based detection scheme is demonstrated for lidar measurements of atmospheric CO2-concentrations, with a hard target at a range of 3 km and atmospheric backscatter from a range of similar to 450 m. The pulsed signals at 1572 nm are upconverted to 635 nm, and detected by a photomultiplier tube, to test how the upconversion technology performs in a long range detection system. The upconversion approach is compared to an existing direct detection scheme using a near-IR detector with respect to signal-to-noise ratio and quantum efficiency. It is for the first time analyzed how the field-of-view of a receiver system, for long range detection, depends critically on the parameters for the nonlinear upconversion process, and how to optimize these parameters in future systems. (C) 2016 Optical Society of America
Original languageEnglish
JournalOptics Express
Volume24
Issue number5
Pages (from-to)5152-5161
ISSN1094-4087
DOIs
Publication statusPublished - 2016

Keywords

  • OPTICS
  • DIFFERENTIAL ABSORPTION LIDAR
  • DETECTOR
  • GENERATION

Fingerprint Dive into the research topics of 'Upconversion-based lidar measurements of atmospheric CO2'. Together they form a unique fingerprint.

Cite this