Hybrid optical fiber, endoscopic system, and method for examining a sample
US12411333B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Jan 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03633
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a hybrid optical fiber (1) which comprises a plurality of fiber cores (2), a first cladding (3) which encloses the plurality of fiber cores (2), and a second cladding (4) which surrounds the first cladding (3). In this case, the fiber cores (2) have a first refractive index n1, the first cladding (3) has a second refractive index n2 and the second cladding (4) has a third refractive index n3, n1 being greater than n2 and n2 being greater than n3. Furthermore, the invention relates to an endoscopic system (8) for examining a sample (9), comprising a hybrid optical fiber (1) and an optical arrangement (21). The optical arrangement (21) comprises a coherent light source (13) for introducing light into a proximal end of the hybrid optical fiber (1), such that the fiber cores (2) of the hybrid optical fiber (1) together with the first cladding (3) of the hybrid optical fiber (1) function as a multimode optical fiber. Furthermore, the optical arrangement (21) comprises a photodetector (20), comprising a plurality of pixels, for detecting the light exiting the individual fiber cores (2). The invention also relates to a method for examining a sample (9) by means of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.