Method and apparatus for fusion-splicing polarization maintaining optical fibers
US6702481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jul 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Each of optical fibers has a core and stress applying members disposed around the core. End portions of the optical fibers are mounted on a fusion-splicing apparatus, and aligned through the image observation from two different lateral directions of the optical fibers. Then, a distance between positions of a bright portion end and a luminance peak closest to the bright portion end is obtained on each bright portion end of a luminance distribution of the optical fiber obtained from at least one picked-up image. The optical fibers are fusion-spliced by aligning the stress applying members so that the sum of the distances is adjusted to be minimum. Alternatively, a distance between positions of the luminance peaks respectively closest to the respective bright portion ends is obtained and the optical fibers are fusion-spliced by aligning the stress applying members so that the distance is adjusted to be maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.