REPEAT

  • Stubkjær, Kristian, (Project Manager)
  • Wolfson, David, (Project Participant)
  • Clausen, Anders (Project Participant)

Description

The aim of the project is to study signal 3R regeneration in the context of optical fibre communications. The three Rs refer respectively to the three main requirements of regeneration: Reamplifying, Reshaping and Retiming.
In copper-based communication systems, conventional electronic 3R regeneration is a well-known technique to overcome span or bit rate limits. An equivalent regeneration is needed for high bit rate signals carried by optical fibre. In an all-optical network context, the need is even more acute as the optical signal may not only travel over very long distances but also go through many switching nodes. In all these cases, noise and distortion accumulate and full regeneration is necessary to restore clean optical data signals. Finally, optical 3R regenerators as interface devices would ease network interoperability.
Today regeneration may be performed by optoelectronic conversion followed by electronic 3R regeneration. This method is not well adapted to high bit-rate, time and wavelength multiplexed optical signals. Within this project, several new optoelectronic and all-optical 3R regenerators will be considered with two main objectives :
To assess performances and to compare with present regenerators
To determine potential strategic advantages of 3R regenerators for optical signals.
StatusFinished
Effective start/end date01/03/199801/04/2000