Optimized ultra large area optical fibers
US8718431B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02019
- 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 microbending and 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 cladding region including an inner trench and an outer trench. The optical fiber further includes a core effective area (Aeff) of between 135 μm2 and about 170 μm2; a figure of merit (FOM) frontier distance less than about 0.8 dB; and a microbend frontier (MBF) distance of less than about 90%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.