US 12,650,558 B2 · Optical fiber cladding optical filter

Abstract

An optical fiber cladding optical filter includes an elongated capillary tube including an inner surface positioned surrounding an elongated optical fiber proximate or adjacent an exterior surface of the optical fiber and an outer surface positioned spaced from the exterior surface of the optical fiber. A grating formed on the outer surface of the elongated capillary tube aids in suppressing evanescent laser light that exits the optical fiber transverse to a longitudinal axis of the optical fiber. The elongated optical fiber and surrounding elongated capillary tube can include one or more curves along a length thereof to aid in the removal of one or more higher order laser modes as evanescent laser light that exits the optical fiber. The one or more curves can be received in a container to prevent or avoid evanescent laser exiting the optical fiber from propagating into an ambient environment.

Claims19

Dependent claims

An optical fiber cladding optical filter comprising:

an elongated optical fiber;
an elongated capillary tube including an inner surface positioned surrounding the optical fiber proximate or adjacent an exterior surface of the optical fiber and an outer surface positioned spaced from the exterior surface of the optical fiber;
a grating formed on the elongated capillary tube;
and
an adhesive disposed between the exterior surface of the optical fiber and the inner surface of the elongated capillary tube.

2 more elements

Dependencies are inferred from the claim text.

Optical fiber cladding optical filter

Life of this patent

Optical fiber cladding optical filter

Life of this patent

Abstract

Claims19