Patent · US Expired

Optical isolator

US5044713A · kind A · utility

14Cited by

14References

4Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Albrecht Mozer · Burghausen, DE
Peter Kersten · Leonberg, DE

Key dates

Filing date	Dec 7, 1988
Grant date	Sep 3, 1991
Priority date	—
Expiry date	Dec 7, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S372/703
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An improved optical isolator (6) for a semiconductor laser (2) for use in optical communication systems consists of a polarizer (4) and a birefringent medium (5). An electric field is applied to the birefringent medium (5) via electrodes (7) for varying the indices of refraction of the birefringent medium (5). By the variation of the indices of refraction, the optical isolator (6)can be adapted to different light wavelengths.

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