公开(公告)号：US11888527B1

公开(公告)日：2024-01-30

申请号：US17929274

申请日：2022-09-01

Applicant: Cisco Technology, Inc.

Inventor： Norbert Schlepple ,  Weizhuo Li ,  Jean-Luc J. Tambasco

IPC: H04B10/532 ,  H04B10/25

CPC classification number: H04B10/532 ,  H04B10/25

Abstract: A system includes an optical source, an integrated circuit, an optical fiber, and a polarization controller. The optical source is arranged emit an optical signal. The integrated circuit includes a mirror. The optical fiber carries the optical signal from the optical source to the integrated circuit. The mirror reflects a transverse magnetic component of the optical signal through the optical fiber to the optical source. The polarization controller adjusts, based on the transverse magnetic component, the optical signal emitted from the optical source such that the transverse magnetic component is reduced.

公开(公告)号：US20240077674A1

公开(公告)日：2024-03-07

申请号：US17902249

申请日：2022-09-02

Applicant: Cisco Technology, Inc.

Inventor： Jean-Luc J. Tambasco ,  Jonathan Edgar Roth

IPC: G02B6/126 ,  G02B6/125 ,  G02B6/14

CPC classification number: G02B6/126 ,  G02B6/125 ,  G02B6/14 ,  G02B2006/12061

Abstract: A polarization rotator includes a bus waveguide disposed on a first layer having a longitudinal axis, a first end, and a second end, and a first upper waveguide and a second upper waveguide disposed on a second layer, above the first layer, the first upper waveguide and the second upper waveguide widening as the first upper waveguide and the second upper waveguide extend from the first end to the second end. The first upper waveguide and the second upper waveguide may also symmetrically bend toward each other and then away from each other proximate the second end.