Optical fibers and optical fiber amplifiers
US5856882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Feb 13, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/06708
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are an optical fiber comprising a core and a cladding wherein the core is composed of a In-Ga-Cd-Pb halide glass and the clad composed of a halide glass possesses a refractive index of 1.515 or less, which has a large specific refractive index difference (.DELTA.n) and a large numerical aperture, and such an optical fiber as mentioned above wherein the core contains one or more activating ions as well as an optical fiber amplifier comprising a pumping source, a laser glass fiber and a means for introducing pumping light and signal light into the above laser glass fiber, wherein the laser glass fiber is the optical fiber of the present invention mentioned above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.