Lens assembly for optical fiber coupling to target and associated methods
US10670807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens assembly for an optical fiber includes an optical gap structure and a multi-mode optical fiber. The optical gap structure has first and second ends and a length measured therebetween. The first end of the optical gap structure is configured to attach to an end of a single-mode optical fiber. The multi-mode optical fiber has first and second ends and a length measured therebetween. The first end of the multi-mode optical fiber is attached to the second end of the optical gap structure. The length of the optical gap structure and the length of the multi-mode optical fiber are set to provide a prescribed working distance and a prescribed light beam waist diameter. The prescribed working distance is a distance measured from the second end of the multi-mode optical fiber to a location of the prescribed light beam waist diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.