Optical network element

Patent metadata

Field	Value
Publication number	US-9529215-B2
Application number	US-201113579341-A
Country	US
Kind code	B2
Filing date	Feb 10, 2011
Priority date	Feb 16, 2010
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An optical network element has a light source which provides an optical signal that is fed to at least two modulators. Each modulator provides an optical carrier signal that is conveyed to a receiving unit. The receiving unit is configured to determine a deviation signal between the optical carrier signal and a carrier conveyed via an incoming signal and to feed the deviation signal to the modulator for adjusting the frequency and/or the phase of the optical carrier signal. Also, a corresponding method for processing data and a communication system with at least one optical network are described.

First claim

The invention claimed is:

1. An optical network element, comprising:
a multi-channel coherent receiver, comprising:
a light source providing an optical signal;
at least two modulators disposed to receive the optical signal from said light source, each said modulator modulating the optical signal to produce an optical carrier signal as a local oscillator signal with a different frequency offset relative to the optical signal of said light source;
at least two receiving units f…

Assignees

• Gottwald Erich
• Rohde Harald
• Xieon Networks Sarl

Inventors

• Gottwald Erich
• Rohde Harald

Classifications

• H04J14/02

  Electricity · mapped topic

• H04B10/6164 Primary

  Electricity · mapped topic

• H04B10/6165

  Electricity · mapped topic

• G02F1/01 Primary

  Physics · mapped topic