Patent · US Expired

Controlling an optical source using a beat frequency

US7075957B2 · kind B2 · utility

5Cited by

8References

23Claims

0Family size

Assignee

AGILENT TECHNOLOGIES, INC. · US

Inventors

Ulrich Kallmann · Lörrach, DE
Bernd Nebendahl · Leonberg, DE
Wolf Steffens · Herrenberg, DE
Emmerich Mueller · Aidlingen, DE
Hansjoerg Haisch · Placerville, US
Jochen Schwarz · Ginsham, DE

Key dates

Filing date	Nov 14, 2003
Grant date	Jul 11, 2006
Priority date	—
Expiry date	Aug 28, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/0687
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An apparatus and method of controlling an optical signal includes superimposing at least one optical reference signal and the optical signal to obtain at least one interference signal having an actual beat frequency, and pre-selecting one or more of the at least one interference signals using a predetermined bandwidth and a filter characteristic that is asymmetric with respect to an actual frequency of the optical signal, to determine a position of the optical signal relative to the at least one optical reference signal.

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