Patent · US Active

Multimode optical fiber

US8879878B2 · kind B2 · utility

12Cited by

129References

22Claims

0Family size

Assignee

Draka Comteq B.V. · NL

Inventors

Marianne Bigot-Astruc · Marcoussis, FR
Denis Molin · Draveil, FR
Pierre Sillard · Le Chesnay, FR

Key dates

Filing date	Jun 27, 2012
Grant date	Nov 4, 2014
Priority date	—
Expiry date	Apr 30, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/0365
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A depressed graded-index multimode optical fiber includes a central core, an inner depressed cladding, a depressed trench, an outer depressed cladding, and an outer cladding. The central core has an alpha-index profile. The depressed claddings limit the impact of leaky modes on optical-fiber performance characteristics (e.g., bandwidth, core size, and/or numerical aperture).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.