Patent · US Expired

Planar reconfigurable optical add/drop module

US7072538B1 · kind B1 · utility

3Cited by
5References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 2003
Grant dateJul 4, 2006
Priority date—
Expiry dateJul 19, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B5/32
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A reconfigurable optical add/drop module (ROADM) for dynamically adding or dropping various wavelengths of an optical signal without having to physically replace the module with a wavelength-specific add/drop module, and corresponding methods. A multiplexed optical signal in an optical network enters the reconfigurable optical add/drop module. Filters on the module separate various wavelengths of the optical signal along the module's various waveguides and a reconfigurable switching matrix directs the various wavelengths of the optical signal to be added, dropped and/or combined with other wavelengths.

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