Devices and methods for transporting and controlling light beams
US11947101B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 2019 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Apr 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0087
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to one aspect, the invention relates to a device (200) for transporting and controlling light beams comprising a light guide (40) comprising a bundle (50) of uncoupled single-mode optical fibers (Fi), each single-mode optical fiber (Fi) being intended to receive an elementary light beam (B1i) at a proximal end and to emit a light beam (B2i) at a distal end, said bundle of single-mode optical fibers comprising, in operation, a minimum radius of curvature corresponding to a maximum curvature of the bundle of fibers. The device (200) furthermore comprises an optical device for phase controlling, said device being arranged on the side of the proximal end of the light guide (40) and comprising at least a first spatial light modulator (30) suitable for applying a phase shift to each of the elementary beams (B1i), and a control unit (60) for controlling the first spatial light modulator, said unit being configured to apply a phase shift to each of the elementary beams (B1i) so as to form, at the distal end of the light guide, an illumination beam with a predefined phase function. According to the present description, said bundle (50) of single-mode optical fibers is twisted, and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.