Patent · US Active

Optical filter having a tapered profile

US11668874B1 · kind B1 · utility

0Cited by

9References

20Claims

0Family size

Assignee

XILINX, INC. · US

Inventors

Zhaoyin D. Wu · San Jose, US
Chuan Xie · Fremont, US
Mayank Raj · San Jose, US
Parag Upadhyaya · Los Gatos, US

Key dates

Filing date	Mar 21, 2022
Grant date	Jun 6, 2023
Priority date	—
Expiry date	Mar 21, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/29395
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Disclosed herein is an optical filter configured for wavelength division and multiplexing capable of transmitting and receiving signals. The optical filter includes an optical waveguide configured to receive at an input multiple signals with different wavelengths. The optical filter includes a plurality of channels coupled at different locations along a length of the optical waveguide. Each of the plurality of channels is configured to transmit a respective one of the multiple signals. A number of ring filter stages in a first channel of the plurality of channels that is closer to the input of the optical waveguide is greater than a second channel in the plurality of channels further away from the input of the optical waveguide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.