公开(公告)号：US12160273B2

公开(公告)日：2024-12-03

申请号：US18073438

申请日：2022-12-01

Applicant: Cisco Technology, Inc.

Inventor： Brian P. Welch ,  Subal Sahni

IPC: H04B10/516

Abstract: An optical system includes a first optical source, a second optical source, a first optical modulator, and a second optical modulator. The first optical modulator includes a first input and a first output. The second optical modulator includes a second input, a third input, a second output, and a third output. During a first mode, the first optical source emits a first optical signal to the first input and the second input, the first optical modulator produces a first modulated optical signal at the first output, and the second optical modulator produces a second modulated optical signal at the second output. During a second mode, the second optical source emits a second optical signal to the third input and the second optical modulator produces a third modulated optical signal at the third output.

公开(公告)号：US11860412B2

公开(公告)日：2024-01-02

申请号：US17081852

申请日：2020-10-27

Applicant: Cisco Technology, Inc.

Inventor： Subal Sahni ,  Kamal V. Karimanal ,  Gianlorenzo Masini ,  Attila Mekis ,  Roman Bruck

IPC: G02B6/122 ,  G02B6/12

CPC classification number: G02B6/1225 ,  G02B6/12014 ,  G02B2006/12061 ,  G02B2006/12107 ,  G02B2006/12135

Abstract: Embodiments include a photonic device with a compensation structure. The photonic device includes a waveguide with a refractive index which changes according to the thermo-optic effect as a temperature of the photonic device fluctuates. The compensation structure is positioned on the photonic device to counteract or otherwise alter the thermo-optic effect on the refractive index of the waveguide in order to prevent malfunctions of the photonic device.