Method for cross-connecting optical signals at high speed
US6842553B2 · kind B2 · utility
8Cited by
18References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2001 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Jun 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0058
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A micro-machined mirror optical crossbar switch directs the light beams of input signal channels to selected output channels by manipulating the focal lengths of adaptive optical elements to ensure that the light beam of any given incoming channel is always focused at the position of the reflective device that is selected to switch that beam. This allows the reflective device to be smaller and switch faster and allows the number of output channels per input channel to be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.