Rapidly reconfigurable wavelength multiplexing device
US5245681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Mar 25, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0282
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wavelength multiplexing device comprising a switching matrix (18) of the N to 1 type, which has several successive stages (18a,18b) of controllable optical couplers (20) interconnected to form a tree structure and modulating means (24) connected to the output of the switching matrix (18). The device further has N sources (10,12,14,16) each emitting a continuous light beam having a particular wavelength to an input of the matrix, and a control circuit (22) connected to the couplers and controlling the latter so as to select P wavelengths from among the N available wavelengths. The device allows efficient transmission of data through an optical network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.