Patent · US Expired

Fiber-optic mode-routed add-drop filter

US5940556A · kind A · utility

39Cited by

5References

26Claims

0Family size

Assignee

IFOS, Inc. · US

Inventors

Behzad Moslehi · Los Altos, US
Richard J. Black · Palo Alto, US
Herbert J. Shaw · Stanford, US

Key dates

Filing date	Mar 7, 1997
Grant date	Aug 17, 1999
Priority date	—
Expiry date	Mar 7, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/29334
WIPO fieldOptics
WIPO sectorInstruments

Abstract

New elements mode-converting two-mode grating and mode-filtering two-mode coupler are disclosed and used as elements in a system for communications, add-drop filtering, and strain sensing. Methods of fabrication for these new two-mode gratings and mode-filtering two-mode couplers are also disclosed.

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