Passive characterization of high power optical fiber average power and LP01 and LP11 modes by detecting MIE scattered light
US11821839B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/9511
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A scattered light detector comprises a first photodiode array comprising one or more photodiodes arranged in a planar, semicircular pattern on a substrate, each of the one or more photodiodes having an outer edge and an inner edge; and a notch perpendicular to the substrate and located adjacent the inner edge of each of the one or more diodes, and equidistant from the outer edges of each of the one or more photodiodes, the notch configured to accept an optical fiber oriented perpendicular to the plane of the one or more photodiodes. When there are two or more photodiodes, the photodiodes may be divided into two or more segments extending outwardly from the notch. Each of the photodiodes shares a common electrical ground. The planes of the one or more photodiodes of the first and second photodiode arrays are oriented parallel to each other and spaced a predetermined distance apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.