Aggregation and de-agreggation of bandwidth within data centers using passive optical elements
US9225454B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2011 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Oct 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0305
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The specification describes an apparatus including a plurality of communication ports, each communication port coupled to a corresponding networking element, and a plurality of optical transceivers, each optical transceiver coupled to a corresponding communication port and including an optical receiver and an optical transmitter, wherein the optical transmitter can transmit an optical data signal having a carrier wavelength different than any other of the plurality of optical transmitters. A passive optical multiplexer/demultiplexer module is coupled to the transceivers and includes an optical multiplexer including a wavelength division multiplexing (WDM) output and a plurality of inputs, each input coupled to one of the plurality of transmitters, and an optical demultiplexer including a WDM input and a plurality of outputs, each output coupled to one of the plurality of receivers. Placing the passive optical multiplexer and demultiplexer external to the optical transceivers creates an aggregation/de-aggregation point with extremely low fault probability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.