Reducing reflection at termination of optical fiber in a small volume
US8842963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2011 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and structure for terminating an optical fiber are disclosed that provide an optical fiber termination structure with a small volume and very low return loss, even when the termination is in close proximity to reflective surfaces. In one example embodiment, the optical fiber termination reduces reflections into the one or more cores to a return loss of −70 dB or less regardless of the presence of surfaces proximate the optical fiber termination. At the same time, a length of the optical fiber termination is less than 5 mm and a largest transverse dimension of the optical fiber termination is less than 325 um. The optical fiber termination is useful in fiber sensing applications in general and is particularly effective for terminating a multi-core fiber used in a distributed shape sensing application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.