Mode field diameter conversion optical fiber
US5446820A · kind A · utility
12Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1993 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Jul 29, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2552
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of this invention is to provide a mode field diameter conversion optical fiber which can be processed in a short period of time to have a reduced mode field diameter at a desired portion thereof. The optical fiber according to this invention comprises a core of silica glass having a residual tensile stress, and a cladding surrounding the core and having a lower refractive index than that of the core. The desired portion is heated to relax the residual tensile stress in the core, whereby the optical fiber has a reduced mode field diameter at the desired portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.