The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Nov. 05, 2021
Office National D'etudes ET DE Recherches Aérospatiales, Palaiseau, FR;
Laurent Lombard, Palaiseau, FR;
Anne Durecu, Palaiseau, FR;
Nicolas Cezard, Palaiseau, FR;
François Gustave, Palaiseau, FR;
Guillaume Canat, Palaiseau, FR;
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES, Palaiseau, FR;
Abstract
A LIDAR system is adapted for performing differential absorption measurements of a chemical compound between two distinct optical frequencies (ν1, ν2), and for measuring a separation distance from an obstacle which is present in a background of a measurement zone where the absorption occurs. An emission optical power value is varied between different time intervals during a radiation emission sequence, in order to allow that the LIDAR system implements an optical fiber technology while having sufficient emission power. The LIDAR system makes it possible to evaluate an amount of the chemical compound which is contained in the measurement zone, as well as a separation distance from an obstacle which is located in the background of the measurement zone.