High SBS threshold optical fiber
US7130514B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2005 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Jun 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1695
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide fiber having a high threshold for stimulated Brillouin scattering. According to some embodiments of the invention, the optical fiber comprises: (a) a rare earth doped core having a refractive index profile and a centerline, the core including at least two adjacent core regions including different amounts of updopants, such that the longitudinal acoustic field velocities within the two core regions differ by at least 0.2%; and (b) a cladding layer surrounding and directly adjacent the core. The said fiber has MFD of greater than 12 μm and delta % difference between the peak core delta and the cladding of less than 0.3%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.