公开(公告)号：US11415751B2

公开(公告)日：2022-08-16

申请号：US17167885

申请日：2021-02-04

申请人： Lumentum Operations LLC

发明人： Jeff Gregg ,  Xiang Peng ,  Richard D. Faulhaber ,  Patrick Gregg

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

摘要： 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.

公开(公告)号：US11592612B2

公开(公告)日：2023-02-28

申请号：US17190207

申请日：2021-03-02

申请人： Lumentum Operations LLC

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

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

摘要： 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

申请人： Lumentum Operations LLC

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

IPC分类号： G02B6/42 ,  G02B6/04

摘要： 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.