Optimized ultra large area optical fibers
US8687932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03683
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Certain embodiments of the invention may include optimized trench-assisted ultra large area (ULA) optical fibers. According to an example embodiment of the invention, a trench-assisted optical fiber, optimized for figure-of-merit (FOM) performance is provided. The optical fiber includes a core region having a longitudinal axis, a shelf region surrounding said core region, a cladding region surrounding said shelf region, said core and shelf and cladding regions configured to support and guide the propagation of signal light in a fundamental transverse mode in said core and shelf regions in the direction of said axis. The optical fiber further includes a core effective area (Aeff) of between 135 μm2 and about 170 μm2; a relative effective index difference (Neff) of greater than about 0.08%; a loss at 1550 nm of less than 0.185 dB/km; and an index profile having a figure of merit (FOM) frontier distance less than about 0.5 dB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.