Variable-density optical cross-connect architectures and upgrades
US7194206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2002 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Jun 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0043
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical cross connect architecture is provided in which the density of spectral bands on optical signals through the cross connect may vary. The general functionality of such variable-density optical cross connect is to receive input optical signals that each have multiple spectral bands and to transmit output optical signals each having one or more of the spectral bands. A concentrator redistributes the spectral bands from the input optical signals among a smaller number of first intermediate optical signals. A core cross connect redistributes the spectral bands on the first intermediate optical signals among second intermediate optical signals. An expander redistributes the spectral bands on the second intermediate optical signals among a greater number of output optical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.