Patent · US Active

Device for coupling pump light into a fiber and method for producing a device of this type

US9620923B2 · kind B2 · utility

0Cited by

6References

21Claims

0Family size

Assignee

Rosenberger Hochfrequenztechnik GmbH & Co. KG · DE

Inventors

Benjamin Weigand · Ellicott City, US
Christian Theobald · Augsburg, DE
Johannes Albert L'Huillier · Eisenberg (Pfalz), DE
Clemens Wurster · Augsburg, DE

Key dates

Filing date	Aug 26, 2014
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Aug 26, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/094049
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device for laterally coupling pump light into a fiber. A fiber runs in a longitudinal direction, having an optically active medium to be pumped and a lateral wall running approximately in the longitudinal direction, and at least one light coupler, at least some part of which runs parallel to the fiber along the lateral wall. The light coupler is an optical waveguide which is optically coupled to the fiber such that pump light propagating in the optical waveguide can be coupled into the fiber via the lateral wall. The efficiency of the pump light coupling is improved by a plurality of windings of the fiber being located alternately with waveguides on a substrate. The pump light can be coupled into all waveguides simultaneously, for example by a prism.

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