Making lightless connections in an optical circuit switch
US8682117B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Sep 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0039
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods of operating an optical circuit switch and optical circuit switches are disclosed. A command to make an optical connection between a first port and a second port may be received, the first port uniquely associated with a first rotatable mirror element and the second port uniquely associated with a second rotatable mirror element. A determination whether or not input signal light is present at the first port may be made. When light is present at the first port, the first mirror element and the second mirror may be rotated to provide an initial optical connection between the first port and the second port. When light is not present at the first port, the first mirror element and the second mirror element may be placed in respective at-rest positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.