Patent · US Expired

Integrated optical filters utilizing resonators

US7065276B2 · kind B2 · utility

28Cited by

8References

4Claims

0Family size

Assignee

Lambda Crossing · IL

Inventors

Jacob Scheuer · Netanya, IL
Moti Margalit · Zichron Ya'akov, IL
Daphna Bortman-Arbiv · Jerusalem, IL

Key dates

Filing date	Apr 3, 2003
Grant date	Jun 20, 2006
Priority date	—
Expiry date	Apr 3, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG02B2006/12109
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A filtering method and optical filter structure are presented. The structure comprises an input waveguide, an output waveguide, and a filter stage formed by at least one closed loop resonator optically coupled to the input and output waveguides. A level of the coupling from each of the waveguides to the resonator is at least 5 times greater than a loss-per-revolution of the resonator. The filter structure thus provides for reducing a bandwidth and insertion loss while filtering at least one optical channel from a multi-channel light signal.

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