Heterodyne optical remote sensing system
FR3168650A1Pending Publication Date: 2026-05-22OFFICE NAT DETUDES & DE RECH AEROSPATIALES
View PDF 4 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- OFFICE NAT DETUDES & DE RECH AEROSPATIALES
- Filing Date
- 2024-11-15
- Publication Date
- 2026-05-22
Smart Images
Figure 00000000_0000_ABST
Abstract
The invention relates to an optical remote sensing system (2) comprising: a laser source (10) for generating a laser beam, a portion of which forms a local oscillator (18); an emission stage (12) configured to shape the laser beam for propagation in a medium to be probed (8); a collection stage (20) configured to collect light scattered by the medium to be probed (8); a plurality of photodetectors (28); and for each photodetector (28), an optical fiber (30) for carrying a portion of the light collected by the collection stage (20) to said photodetector (28), to generate, on the photodetector (28), an optical interference signal with a fraction of the local oscillator (18), the photodetector (28) being the conjugate, through each optical fiber (30) and the collection stage (20), of a respective point in the medium to be probed (8). Figure 1
Need to check novelty before this filing date? Find Prior Art
Claims
5. System (2) according to any one of claims 1 to 4, wherein, for at least one optical fiber (30), an optical axis (A4) corresponding to the level of the respective input (34) is parallel to an optical axis (A2) of the optical collection stage (20).
6. System (2) according to any one of claims 1 to 5, wherein, for at least one optical fiber (30), an optical axis (A4) corresponding to the level of the respective inlet (34) passes through an optical center of the optical collection stage (20).