Patent · US Expired

Optical add drop multiplexer

US7024116B2 · kind B2 · utility

9Cited by
12References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 2001
Grant dateApr 4, 2006
Priority date—
Expiry dateJan 23, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J14/0213
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

The invention proposes a Grouped Optical Add Drop Multiplexer (GOADM) comprising a periodic filter for forming a group of spaced optical wavelengths to be dropped or added.

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