Patent · US Expired

Polarization-mode dispersion detecting method, and a dispersion compensation controlling apparatus and a dispersion compensation controlling method

US7035548B2 · kind B2 · utility

7Cited by
12References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 18, 2004
Grant dateApr 25, 2006
Priority date
Expiry dateFeb 29, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B10/2572
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A dispersion compensation controlling apparatus used in a very high-speed optical communication system adopting optical time division multiplexing system comprises a first specific frequency component detecting unit (2a) detecting a first specific frequency-component in a baseband spectrum in a transmission optical signal inputted to a receiving side over a transmission fiber as a transmission line (6a), a first intensity detecting unit (3a) detecting information on an intensity of the first specific frequency component detected by the first specific frequency component detecting unit (2a and a polarization-mode dispersion controlling unit (220a) con trolling a polarization-mode dispersion quantity of the transmission line (6a) such that the intensity of the first specific frequency component detected by the first intensity detecting unit. (3a) becomes the maximum, thereby easily detecting and compensating polarization-mode dispersion generated in a high-speed optical signal.

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