Patent · US Active

Fiber coupler

US9557483B2 · kind B2 · utility

3Cited by

19References

19Claims

0Family size

Assignee

TRUMPF LASER GMBH · DE

Inventors

Marcin Michal Kozak · Teltow, DE
Malte Kumkar · Weimar, DE
Peter Riedel · Holzgerlingen, DE
Hagen Zimer · Schramberg, DE

Key dates

Filing date	Jun 3, 2013
Grant date	Jan 31, 2017
Priority date	—
Expiry date	Jun 3, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/40
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A fiber coupler is provided, which includes a tubular enveloping structure and several optical fibers arranged in the enveloping structure, each of which has a fiber core and a fiber cladding surrounding same, in order to conduct laser radiation, and each of which extends from the first as far as the second end of the enveloping structure. The enveloping structure includes a tapering section which is tapered in a first direction from the first as far as the second end. In the tapering section, both a first ratio of the diameter of the fiber core to the diameter of the fiber cladding and also a second ratio of the diameter of the mode field of the laser radiation conducted in the optical fiber to the diameter of the fiber core, increases in the first direction for each optical fiber.

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