Patent · US Active

Large core area single mode optical fiber

US8903214B2 · kind B2 · utility

226Cited by

22References

17Claims

0Family size

Assignee

NKT PHOTONICS A/S · DK

Inventor

Thomas Tanggaard Alkeskjold · Jyllinge, DK

Key dates

Filing date	Jun 27, 2011
Grant date	Dec 2, 2014
Priority date	—
Expiry date	Jul 19, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/094007
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A single-mode optical fiber for guiding an optical signal, wherein the core region is capable of guiding an optical signal in a fundamental core mode at an optical signal wavelength. A cladding region is arranged to surround the core region and includes an inner cladding region and an outer cladding region. The inner cladding region includes a background material and a plurality of inner cladding features arranged in the background material, wherein a plurality of the plurality of inner cladding features are of a first type of feature that includes an air hole surrounded by a high-index region comprising a high-index material that is larger than the refractive index of the inner cladding background material.

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