Patent · US Expired

Fiber-optic amplifier as wavelength converter

US5453872A · kind A · utility

1Cited by

12References

16Claims

0Family size

Assignee

Alcatel N.V. · NL

Inventors

Rolf Heidemann · Zöblitz, DE
Henning Bulow · Kornwestheim, DE
Thomas Pfeiffer · Kumhausen, DE

Key dates

Filing date	Jul 26, 1994
Grant date	Sep 26, 1995
Priority date	—
Expiry date	Jul 26, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1608
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An optical system includes a fiber-optic amplifier having a section of optical waveguide doped with a rare-earth element and a pump-light source for emitting pump light, the fiber-optic amplifier receiving signal light of a first wavelength and outputting at least signal light of a second wavelength. An optical-to-electrical transducer receives the signal light of the second wavelength from the fiber-optic amplifier and produces an electrical output signal. The signal light of the second wavelength is pump light which is unabsorbed in the section of optical waveguide.

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