Patent · US Active

Optical fiber with multiple ring-shaped core regions

US8204349B2 · kind B2 · utility

7Cited by

13References

20Claims

0Family size

Assignee

IPG PHOTONICS CORPORATION · US

Inventors

Valentin Gapontsev · Worcester, US
Nikolai Platonov · Worcester, US
Roman Yagodkin · Worcester, US
Volodia Sergueev · Burbach, DE

Key dates

Filing date	Oct 28, 2009
Grant date	Jun 19, 2012
Priority date	—
Expiry date	Sep 9, 2030

Classification

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

Abstract

Optical apparatus, comprising an optical fiber having a wavelength of operation, the optical fiber comprising an inner core, the inner core supporting a fundamental mode and at least first and second higher order modes (HOMs) at the wavelength of operation; a first ring-shaped core region spaced from and disposed about the inner core; a second ring-shaped core region spaced from and disposed about the ring-shaped core region; and wherein the optical fiber is configured and arranged such that the first HOM optically interacts with the first ring-shaped core region and the second HOM optically interacts with the second ring-shaped core region.

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