公开(公告)号：US11747566B2

公开(公告)日：2023-09-05

申请号：US17660993

申请日：2022-04-27

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Jock T. Bovington

IPC: G02B6/293 ,  H04J14/02 ,  G02B6/42

CPC classification number: G02B6/2938 ,  G02B6/29368 ,  G02B6/4215 ,  H04J14/0254

Abstract: Aspects described herein include an optical apparatus comprising a plurality of light-carrying media, a wavelength division multiplexing (WDM) device optically coupled with the plurality of light-carrying media, and a lens arranged between the WDM device and a multicore optical fiber. An arrangement of the plurality of light carrying media and the WDM device are selected to align each of the plurality of light-carrying media with a respective optical core of the multicore optical fiber.

公开(公告)号：US11199668B1

公开(公告)日：2021-12-14

申请号：US16940528

申请日：2020-07-28

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Jock T. Bovington

IPC: G02B6/42 ,  G02B6/02

Abstract: Aspects described herein include a method comprising arranging a laser die on a substrate. The laser die has multiple channels that are arranged with a first planar arrangement proximate to a facet of the laser die. The method further comprises aligning a single lens to the facet, and aligning a multicore optical fiber to the laser die through the single lens. The multicore optical fiber has a plurality of optical cores that are arranged with a second planar arrangement. Aligning the multicore optical fiber to the laser die comprises rotationally aligning the multicore optical fiber to align the second planar arrangement with the first planar arrangement.

公开(公告)号：US12072525B2

公开(公告)日：2024-08-27

申请号：US18295360

申请日：2023-04-04

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple

IPC: G02B6/024

CPC classification number: G02B6/024

Abstract: Techniques are provided for radiation-induced birefringence in a Polarization-Maintaining Fiber (PMF). In one example, a fiber is obtained. At least one local volume of the fiber is irradiated to induce an end-to-end birefringence in the fiber. Based on the end-to-end birefringence induced in the fiber, a PMF is produced.

公开(公告)号：US12066663B2

公开(公告)日：2024-08-20

申请号：US17650601

申请日：2022-02-10

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Vipulkumar K. Patel ,  Weizhuo Li

IPC: G02B6/30 ,  G02B6/36 ,  G02B6/38 ,  G02B6/43

CPC classification number: G02B6/30 ,  G02B6/3608 ,  G02B6/3885 ,  G02B6/43

Abstract: An apparatus includes a ribbon, an optical waveguide, and an IC. The ribbon includes a first end. The optical waveguide is disposed within the ribbon and terminates at the first end. The IC includes a curved surface. The first end of the ribbon bends to mate with the curved surface such that the optical waveguide is optically coupled to a corresponding waveguide in the IC.

公开(公告)号：US11675130B2

公开(公告)日：2023-06-13

申请号：US17447145

申请日：2021-09-08

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Vipulkumar K. Patel

IPC: G02B6/255 ,  G02B6/12

CPC classification number: G02B6/2555 ,  G02B6/12 ,  G02B6/2551 ,  G02B6/2553 ,  G02B2006/12138 ,  G02B2006/12192

Abstract: Techniques for aligning each of a plurality of optical fibers for coupling to a photonic integrated circuit (PIC). Transmission is detected from each respective optical fiber to the PIC using a probe, and the respective optical fiber is aligned based on the detected transmission. Each of the plurality of optical fibers is coupled to the PIC using at least one of: (i) laser splicing, (ii) laser spot welding, or (iii) arc welding.

公开(公告)号：US12237643B2

公开(公告)日：2025-02-25

申请号：US17302964

申请日：2021-05-17

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Jock T. Bovington ,  Mary Nadeau ,  Mittu Pannala ,  Jarrett S. Neiman

IPC: H01S5/024 ,  H01S5/02 ,  H01S5/02326

Abstract: Heatsinking in laser devices may be improved via a device, including: a header disk having a first face with a circumference; a header post that is thermally conductive, and having: a second face connected to the first face coterminously with the circumference; a third face opposite to the second face; and a fourth face perpendicular to the second face and the third face; a lens holder, having a fifth face connected to the third face; and an optical subassembly connected to the fourth face and optically aligned with the lens holder. The device may also be understood to comprise: a header disk having a circumference; a header post that is thermally conductive, the header post having: an arc coterminous to a portion of the circumference; a mounting face, perpendicular to a plane in which the arc and the circumference are defined; and a bonding face perpendicular to the mounting face.

公开(公告)号：US11675123B2

公开(公告)日：2023-06-13

申请号：US17559380

申请日：2021-12-22

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple

IPC: G02B6/024

CPC classification number: G02B6/024

Abstract: Techniques are provided for radiation-induced birefringence in a Polarization-Maintaining Fiber (PMF). In one example, a fiber is obtained. At least one local volume of the fiber is irradiated to induce an end-to-end birefringence in the fiber. Based on the end-to-end birefringence induced in the fiber, a PMF is produced.

公开(公告)号：US11662532B2

公开(公告)日：2023-05-30

申请号：US17643312

申请日：2021-12-08

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Jock T. Bovington

IPC: G02B6/42 ,  G02B6/02

CPC classification number: G02B6/4204 ,  G02B6/02042 ,  G02B6/4226

Abstract: Aspects described herein include a method including arranging a laser die on a substrate. The laser die has multiple channels that are arranged with a first planar arrangement proximate to a facet of the laser die. The substrate is arranged on a housing component. The method further includes aligning a single lens to the facet, and aligning a multicore optical fiber to the laser die through the single lens. The multicore optical fiber has a plurality of optical cores that are arranged with a second planar arrangement. Aligning the multicore optical fiber to the laser die includes attaching the multicore optical fiber to the housing component and rotationally aligning the multicore optical fiber to align the second planar arrangement with the first planar arrangement.

公开(公告)号：US11600964B2

公开(公告)日：2023-03-07

申请号：US16995729

申请日：2020-08-17

Applicant: Cisco Technology, Inc.

Inventor： Jock T. Bovington ,  Norbert Schlepple

IPC: H01S5/024 ,  H01S3/067 ,  B23K101/14

Abstract: Aspects described herein include a method of fabricating an optical component. The method comprises electrically coupling different laser channels of a laser die to different electrical leads, testing a respective optical coupling of each of the different laser channels, optically aligning an optical fiber with a first laser channel of the different laser channels having the greatest optical coupling, and designating a second laser channel of the different laser channels as a heater element for the first laser channel.

公开(公告)号：US11978999B2

公开(公告)日：2024-05-07

申请号：US18158879

申请日：2023-01-24

Applicant: Cisco Technology, Inc.

Inventor： Jock T. Bovington ,  Norbert Schlepple

IPC: H01S5/024 ,  H01S3/067 ,  B23K101/14

CPC classification number: H01S5/02453 ,  H01S3/06704 ,  H01S5/02469 ,  B23K2101/14

Abstract: Aspects described herein include a method of fabricating an optical component, the optical component, and a method of operating the optical component. A method includes electrically coupling a first laser channel and a second laser channel of a laser die to different electrical leads and testing (i) a first optical coupling of the first laser channel and a second optical coupling of the second laser channel or (ii) a first spectral performance of the first laser channel and a second spectral performance of the second laser channel. The method also includes optically aligning an optical fiber with the first laser channel and designating the second laser channel as a heater element for the first laser channel based at least in part on (i) the first optical coupling being greater than the second optical coupling or (ii) the first spectral performance relative to the second spectral performance.