Patent · US Expired

Optical electromagnetic wave generator

US6614816B2 · kind B2 · utility

1Cited by

5References

19Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Spartak Gevorgian · Handen, SE
Nils Calander · Gothenburg, SE
Mats Karlsson · Göteborg, SE
Mattias Nilsson · Gately Drive, SE
Joakim Een · Umeå, SE
Anders Larsson

Key dates

Filing date	Jan 11, 2001
Grant date	Sep 2, 2003
Priority date	—
Expiry date	Jan 11, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/423
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Microwaves are generated by heterodyning the outputs of two or more optical lasers which have differing central frequencies to produce beat frequencies in the microwave range. One of the beat frequencies is used to modulate the output of at least one of the lasers so as to produce sidebands which differ from the central frequency by an integral number of the sideband frequency. Each laser is connected to one of the other lasers by a weak optical link to optically injection lock the laser to the sideband of the other laser.

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