Hybrid bi-directional three color wave division multiplexer and method using same
US5712936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1996 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Dec 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0224
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hybrid, bi-directional, three-color, wave-division multiplexer (HB3-WDM), fiber optic communication system employs a combination of wide band and narrow band WDMs to multiplex three pairs of optic signals over two fiber optic cables. The three pairs of signals include two pairs in a range centered about 1550 nm and one pair in a range centered about 1330 nm. In one embodiment, modularized HB3-WDMs are used to modify a pre-existing, multi-cable, bi-directional, two-color WDM system. The modified system communicates thirty percent more data while maintaining pre-existing signal attenuation levels and pre-existing back-up capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.