公开(公告)号：US11693176B2

公开(公告)日：2023-07-04

申请号：US17645336

申请日：2021-12-21

Applicant: Lumentum Operations LLC

Inventor： Patrick Gregg ,  Martin H. Muendel ,  Richard D. Faulhaber ,  Alex Hatcher ,  John Peck

IPC: G02B6/02 ,  B23K26/073 ,  G02B6/028 ,  G02B6/26 ,  B23K26/082

CPC classification number: G02B6/02042 ,  B23K26/073 ,  G02B6/028 ,  G02B6/262 ,  B23K26/082

Abstract: An in-fiber beam scanning system may comprise an input fiber to provide a beam, a feeding fiber comprising an imaging bundle with multiple cores embedded in a first cladding that is surrounded by a second cladding, and an in-fiber beam shifter that comprises a first multibend beam shifter coupled to the input fiber, a graded index fiber following the first multibend beam shifter, and a second multibend beam shifter following the graded index fiber and coupling into the feeding fiber. In some implementations, the first multibend beam shifter is actuated by a first amount and the second multibend beam shifter is actuated by a second amount to shift the beam in two dimensions and deliver the beam into one or more target cores in the imaging bundle.

公开(公告)号：US11347069B2

公开(公告)日：2022-05-31

申请号：US16703723

申请日：2019-12-04

Applicant: Lumentum Operations LLC

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

IPC: G02B27/09 ,  G02B6/02 ,  G02B6/14 ,  C03B37/025 ,  G02B6/024 ,  G02B6/10

Abstract: An optical fiber device may include a core including a primary section and a secondary section. The secondary section may include at least one insert element inserted within the primary section at an off-center location with respect to a center of the primary section. The secondary section may twist about an axis of the optical fiber device along a length of the optical fiber device. A rate of twist at which the secondary section twists about the axis may increase from a first end of the optical fiber device toward a second end of the optical fiber device. The secondary section being twisted about the axis may cause an optical beam, launched at the first end of the optical fiber device, to be at least partially converted to a rotary optical beam at the second end of the optical fiber device.

公开(公告)号：US10690855B2

公开(公告)日：2020-06-23

申请号：US16573814

申请日：2019-09-17

Applicant: Lumentum Operations LLC

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

IPC: G02B6/44 ,  G02B6/255 ,  G02B6/25

Abstract: A device may splice, at a target splice point, a first end of a twisted fiber having a non-concentric core to an input end of a target fiber having a concentric core to form a spliced fiber wherein the concentric core of the target fiber and the non-concentric core of the twisted fiber have a particular offset at the target splice point. The device may taper at least a portion of the twisted fiber to form a tapered region of the spliced fiber and such that the particular offset at the target splice point corresponds to a pre-configured core offset wherein the target splice point is within the tapered region of the spliced fiber.