Optical-electrical switching node

Patent metadata

Field	Value
Publication number	US-9106982-B2
Application number	US-201013818631-A
Country	US
Kind code	B2
Filing date	Aug 25, 2010
Priority date	Aug 25, 2010
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

An electro-optical switch ( 170 ) for receiving N data streams optically, each of said N data streams having an amplitude and a phase and each being located at an optical center frequency F O1 +RF M , where F O1 is a first optical modulation frequency and RF M is a signal center frequency. The electro-optical switch is arranged to convert the N data streams to electrical data signals at the data stream's signal center frequency RF M , the electrical data signals having the amplitude and phase of the optical data stream. The electro-optical switch is further arranged to convert electrical data signals to optical output signals at optical center frequency F O2 +RF Out with the amplitude and phase of the first electrical data signal maintained, and to transmit the optical output signals, with RF M and RF Out , being equal to or different from each other, and F O1 and F O2 also being equal to or different from each other.

First claim

The invention claimed is:

1. An electro-optical switch, comprising:
a memory;
a processor coupled to the memory, wherein the processor is configured to:
(i) receive N data streams on an optical link from a first node in a communications system, each of said N data streams having an amplitude and a phase and each being located at an optical centre frequency F O1 +RF M , where Fo 1 is a first optical modulation frequency and RF M is a signal centre frequency, where M is an int…

Assignees

• Olsson Bengt-Erik
• Ericsson Telefon Ab L M

Inventors

• Olsson Bengt-Erik

Classifications

• H04Q11/0005 Primary

  Electricity · mapped topic

• H04Q2011/0007

  Electricity · mapped topic

• H04Q2011/0035

  Electricity · mapped topic