公开(公告)号：US11592612B2

公开(公告)日：2023-02-28

申请号：US17190207

申请日：2021-03-02

Applicant: Lumentum Operations LLC

Inventor： Patrick Gregg ,  Martin H. Muendel ,  Richard D. Faulhaber ,  James J. Morehead ,  Jeff Gregg

IPC: G02B6/02 ,  G02B6/036 ,  H01S3/067

Abstract: In some implementations, a waveguide may comprise an inner core to receive a first beam and an outer core surrounding the inner core to receive a second beam that is displaced from the first beam by an offset. The outer core may comprise a beam guiding region that rotationally expands over a length of the waveguide into an annulus that concentrically surrounds the inner core or a partial annulus that partially surrounds the inner core. For example, the beam guiding region may be defined by one or more low refractive index features that have a varied orientation and/or a varied shape over the length of the waveguide such that the second beam enters the waveguide as an offset beam and exits from the waveguide as a ring-shaped beam or a partial ring-shaped beam.

公开(公告)号：US11619788B2

公开(公告)日：2023-04-04

申请号：US17304999

申请日：2021-06-29

Applicant: Lumentum Operations LLC

Inventor： Martin H. Muendel ,  Patrick Gregg ,  Richard D. Faulhaber ,  Jeff Gregg ,  James J. Morehead

IPC: G02B6/42 ,  G02B6/04

Abstract: In some implementations, a fiber optic combiner may comprise an enclosing tube having a geometric shape and multiple optical fibers bundled within the enclosing tube. In some implementations, the multiple fibers comprise at least one optical fiber having a core and a non-circular cladding surrounding the core. The non-circular cladding may cause the multiple optical fibers to have a larger tube fill factor and a lower expected beam parameter product increase factor relative to the multiple optical fibers all having circular claddings.

公开(公告)号：US12298555B2

公开(公告)日：2025-05-13

申请号：US17810087

申请日：2022-06-30

Applicant: Lumentum Operations LLC

Inventor： Patrick Gregg ,  Richard D. Faulhaber ,  Martin H. Muendel ,  Jeff Gregg ,  Kyle R. Schneider

IPC: G02B6/02 ,  G02B6/04 ,  G02B6/28 ,  H01S3/094

Abstract: A laser component includes a pump-signal combiner, which includes a first capillary, a plurality of pump fibers, a second capillary, and a signal fiber. The plurality of pump fibers, the second capillary, and the signal fiber are arranged in a bundle configuration. The bundle configuration is disposed within an internal portion of the first capillary. A cross-section of the bundle configuration includes an outer area, in which the plurality of pump fibers are disposed, and an inner area, in which the second capillary and the signal fiber are disposed. The signal fiber is disposed within an internal portion of the second capillary.

公开(公告)号：US11415751B2

公开(公告)日：2022-08-16

申请号：US17167885

申请日：2021-02-04

Applicant: Lumentum Operations LLC

Inventor： Jeff Gregg ,  Xiang Peng ,  Richard D. Faulhaber ,  Patrick Gregg

IPC: G02B6/32 ,  F21V8/00 ,  H01S3/067

Abstract: An optical fiber includes a core configured to transmit laser light and a cladding that surrounds the core. In some implementations, an outer surface region of the cladding is tapered or comprises a plurality of notches. The outer surface region of the cladding is configured to cause an aiming beam that falls incident upon the outer surface region of the cladding at a first incidence angle to fall incident upon an outer surface region of the core at a second incidence angle to allow the aiming beam to couple into the core.