Compact multicast switches, MxN switches and MxN splitters
US9363581B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2013 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Apr 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0049
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
New architectures for multicast switches, and other optical switches and splitters, that have substantially reduced insertion loss, crosstalk and better overall optical performance in comparison to existing optical switches and splitters. Optimized waveguide mesh layouts are used to substantially reduce the number of waveguide crossings, which reduces insertion loss. The reduction in the number of crossings also reduces the complexity of the mesh and provides better crossing angles to reduce crosstalk and other issues. Instead of crossing all of the waveguides connected between splitter outputs and switch inputs, the waveguides are crossed in sets of waveguides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.