Patent · US Expired

Tunable grating optical device

US6546167B1 · kind B1 · utility

5Cited by

7References

16Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

Gang Chen · Walnut, US
Stephanus J. Spammer · Corning, US
Laura A. Weller-Brophy · Corning, US

Key dates

Filing date	Dec 11, 2001
Grant date	Apr 8, 2003
Priority date	—
Expiry date	Dec 11, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH04J14/0213
WIPO fieldOptics
WIPO sectorInstruments

Abstract

One aspect of the invention is an optical add/drop multiplexer. The optical add/drop multiplexer includes a first optical circulator, the first circulator includes a first port, a second port, and a third port. The optical add/drop multiplexer also includes a first tunable grating coupled to the first port and a second tunable grating coupled to the first grating. The optical add/drop multiplexer further includes a second optical circulator, the second optical circulator includes a fourth port, coupled to the second grating; a fifth port, and a sixth port. Wherein the first tunable grating is a fiber Bragg grating and wherein the second tunable grating is a fiber Bragg grating.

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