Patent · US Active

High power fiber laser system with distributive mode absorber

US8948218B2 · kind B2 · utility

22Cited by

1References

29Claims

0Family size

Assignee

IPG PHOTONICS CORPORATION · US

Inventors

Valentin Gapontsev · Worcester, US
Valentin Fomin · Münster, DE
Mikhail Abramov · Oxford, US
Anton Ferin · Burbach, DE

Key dates

Filing date	Jun 18, 2014
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Jun 18, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/11
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.

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