Optical fibre incorporating a variable internal Bragg grating and its applications
US5218651A · kind A · utility
24Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical fibre device having a core and coaxial sheath. The core and coaxial sheath provides a light amplifier when optically pumped. Interfering optical waves incident to the fiber having a predetermined intensity and wavelength inscribe an ephemeral periodic index strata grating over at least part of the fiber core when the core is illuminated. In the absence of illumination by interfering waves, the grating disappears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.