Optical switching matrix
US5570218A · kind A · utility
22Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1995 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Aug 23, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0052
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical switching matrix, a common waveguide and a plurality of individual waveguides are connected by a selector that connects the common waveguide to a selected individual waveguide. The individual waveguides are doped and light from a pump is injected into the common waveguide towards the selector. The selector selectively transmits this light to the selected individual waveguide. The resulting amplification in this waveguide reduces crosstalk. One application of these optical switching matrices is in fiber optic telecommunication networks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.