公开(公告)号：US20240219755A1

公开(公告)日：2024-07-04

申请号：US18148851

申请日：2022-12-30

Applicant: Cisco Technology, Inc.

Inventor： Shawn X. WANG ,  Steffen GLOECKNER ,  Michael P. MACK

IPC: G02F1/09 ,  G02B3/00 ,  G02F1/00

CPC classification number: G02F1/092 ,  G02B3/0012 ,  G02B3/0056 ,  G02B3/0075 ,  G02F1/0036 ,  G02F1/093 ,  G02B2003/0093

Abstract: Embodiments here describe a Faraday rotator ball lens that can be used in an optical device to focus received light and prevent back reflections from reaching a light source. In one embodiment, the isolator ball lens includes an optic axis that should be aligned with the direction of the received light in order to rotate the light so that back reflections cannot reach the light source. To do so, the isolator ball lens is placed on a holder which is then vibrated, shaken, or an aerodynamic levitation is applied in the presence of a magnetic field. The magnetic field is aligned with a desired direction of the optic axis of the isolator ball lens as the ball lens. As a result, when the ball lens is moved, the magnetic field rotates the ball lens and aligns its optic axis in the desired direction.

公开(公告)号：US20250028114A1

公开(公告)日：2025-01-23

申请号：US18353760

申请日：2023-07-17

Applicant: Cisco Technology, Inc.

Inventor： Xunyuan ZHANG ,  Weizhuo LI ,  Steven H. HOVEY ,  Michael P. MACK ,  Steffen GLOECKNER

IPC: G02B6/12

Abstract: Embodiments herein describe optical devices that include focusing elements in or on a substrate on which a laser source is disposed. That is, the focusing element can be arranged on a same surface of the substrate as the laser source. In one embodiment, the laser source emits an optical signal that is parallel with the same surface of the substrate. A turning mirror can be used to direct the optical signal in a direction perpendicular to the surface so that the optical signal is incident on the focusing element.

公开(公告)号：US20240418944A1

公开(公告)日：2024-12-19

申请号：US18335611

申请日：2023-06-15

Applicant: Cisco Technology, Inc.

Inventor： Shawn X. WANG ,  Michael P. MACK

IPC: G02B6/36 ,  G02B6/38

Abstract: Embodiments herein describe attaching (or bonding) alignment parts to a photonic die so that these alignment parts can then be used to passively align a FAU to the photonic die. In one embodiment, the alignment part (or parts) is aligned to a photonic die using a mounting FAU. The mounting FAU (along with the mated alignment parts) can then be actively aligned to the photonic die. When aligned, the alignment parts can be bonded (e.g., using cured epoxy) to the photonic die. The mounting FAU can then be lifted off, leaving the alignment parts attached to the photonic die. Later, a final product FAU (which may have a different shape than the mounting FAU) can then be passively aligned to the photonic die using the previously mounted alignment part or parts.

公开(公告)号：US20230081747A1

公开(公告)日：2023-03-16

申请号：US17447886

申请日：2021-09-16

Applicant: Cisco Technology, Inc.

Inventor： Subal SAHNI ,  Peter M.C. DE DOBBELAERE ,  Michael P. MACK

IPC: G02B6/34 ,  G02B6/12 ,  G02B6/124

Abstract: High density fiber interfaces for silicon photonics based integrated-optics products are provided via a system or device that includes: a prism configured to reflect, via a lensed reflecting surface, a plurality of optical signals between a first surface and a second surface at a non-normal angle of incidence; a photonic interposer including a plurality of grating couplers corresponding to the plurality of optical signals that are arranged in a two-dimensional array and that are optically connected directly to the first surface of the prism; and a plurality of optical fibers that are arranged in the two-dimensional array and that are optically connected directly to the second surface of the prism.