Full-duplex wavelength division multiplexing system using single-device transceivers
US5909294A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | May 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A Wavelength Division Multiplexing (WDM) transceiver includes a Wavelength Multiplexer/Demultiplexer (WM/D) having a plurality of inputs (N) and N Amplified Light Emitting (ALED) devices, each ALED device transmitting a wideband optical signal to and receiving an optical signal from a different one of the N inputs of the WM/D transceiver. During transmission, the WM/D selects different wavelengths from ALED signals at each of the N inputs and multiplexes them together into a combined signal at its output. During receiving, the WM/D demultiplexes different wavelengths from a signal received at its output and sends the different wavelengths to each of the N inputs. A WDM system is formed using two WDM transceivers which are connected over an optical link and which alternately transmit and receive signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.