Upconversion detector for range-resolved DIAL measurement of atmospheric CH4 | Zendy

Lichun Meng | Zendy; Andreas Fix | Zendy; Martin Wirth | Zendy; Lasse Høgstedt | Zendy; Peter TidemandLichtenberg | Zendy; Christian Pedersen | Zendy; Peter John Rodrigo | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Upconversion detector for range-resolved DIAL measurement of atmospheric CH₄

Author(s) -

Lichun Meng,

Andreas Fix,

Martin Wirth,

Lasse Høgstedt,

Peter TidemandLichtenberg,

Christian Pedersen,

Peter John Rodrigo

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.003850

Subject(s) - dial , materials science , lidar , optics , photon upconversion , photomultiplier , laser , detector , photodetector , optoelectronics , lithium niobate , avalanche photodiode , signal (programming language) , absorption (acoustics) , physics , computer science , acoustics , programming language

We demonstrate a robust, compact, portable and efficient upconversion detector (UCD) for a differential absorption lidar (DIAL) system designed for range-resolved methane (CH 4 ) atmospheric sensing. The UCD is built on an intracavity pump system that mixes a 1064 nm pump laser with the lidar backscatter signal at 1646 nm in a 25-mm long periodically poled lithium niobate crystal. The upconverted signal at 646 nm is detected by a photomultiplier tube (PMT). The UCD with a noise equivalent power around 127 fW/Hz 1/2 outperforms a conventional InGaAs based avalanche photodetector when both are used for DIAL measurements. Using the UCD, CH 4 DIAL measurements have been performed yielding differential absorption optical depths with relative errors of less than 11% at ranges between 3 km and 9 km.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research