Patent · US Expired

Integrated optical waveguide

US5069517A · kind A · utility

8Cited by

5References

8Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Peter Kersten · Leonberg, DE
Helmut Hanisch · Jeffery Road, DE

Key dates

Filing date	Sep 5, 1990
Grant date	Dec 3, 1991
Priority date	—
Expiry date	Sep 5, 2010

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/225
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A transparent substrate is covered with a metal layer which serves as an etch mask for forming a groove, and from which regions are formed which constitute electrodes. At least the groove and the adjacent areas of the substrate are then covered with a layer of a material having electrooptical properties, the material in the groove forming an optical waveguide.

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