Patent · US Expired

Bi-directional all-optical regenerator

US6317232A · kind A · utility

20Cited by
9References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 25, 1998
Grant dateNov 13, 2001
Priority date
Expiry dateMar 25, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/0075
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

An all-optical system for regenerating a first optical signal carried in a first direction on an optical transmission medium and a second optical signal carried in a second direction on the optical transmission medium includes a bi-directional clock recovery loop and a bi-directional optical gate. The bi-directional clock recovery loop includes a first optical clock recovery circuit for recovering a first clock signal from the first optical signal and a second optical circuit for recovering a second clock signal from the second optical signal. The first and second optical circuits of the clock recovery loop share at least some common optical circuit elements. The bi-directional optical gate includes a first non-linear optical light mirror circuit for producing a first regenerated signal based on the first optical signal and the first clock signal and a second non-linear optical light mirror circuit for producing a second regenerated signal based on the second optical signal and the second clock signal. The first and second non-linear optical light mirror circuits share at least some common optical circuit elements.

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