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US 2007/0165991 A1Published application
Hollow core optical fiber
AssigneeTrumpf Laser GmbH
InventorRudolf Huber
Life of this patent
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Abstract
An optical fiber comprises a hollow fiber core, wherein the front faces of both fiber ends of the hollow fiber core are open and each fiber end is surrounded by a protection element in a dustproof fashion. The protection element includes a window at its front face in front of the fiber end to couple and decouple light to and from the hollow fiber core.
Claims28
An optical fiber comprising:
- a hollow fiber core having an open fiber end face at an end of the fiber;
- and
- a fiber end protection element surrounding the end of the fiber in a dustproof fashion;
- the fiber end protection element defining a window spaced from the end of the fiber and positioned to couple and decouple the light to and from the hollow fiber core.
1 more element
An optical fiber system comprising:
- a hollow fiber core including fiber ends and front faces of both fiber ends that are open, and
- a protection element surrounding a fiber end in a dustproof fashion,
- wherein the protection element includes a window at its front face in front of and separated from the fiber end by a distance to couple and decouple the light to and from the hollow fiber core.
A method of protecting a hollow fiber core of a hollow core optical fiber, the method comprising:
- surrounding an open front face of a fiber end of a hollow fiber core with a protection element,
- coupling the protection element to the fiber end in a dustproof fashion to define a closed cavity at the fiber end, and
- enabling light to couple into and decoupling out of the hollow fiber core through a front face of a window of the protection element that is separated from the fiber open front face by a distance.
Dependencies are inferred from the claim text.