Optical switch based on light spatial modulators
US6714339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention concerns an optical switch for optical beams comprising a series of optical input channels (110) and a series of optical output channels (210), two optical index spatial modulating cells (300, 400) adapted to respectively deflect an optical beam coming out of an input channel and arriving onto an output channel, each series of optical channels (110, 210) being distributed according to two dimensions transverse to the direction of the channels and the index spatial modulating cells (300, 400) being each designed to produce deflections according to said two dimensions. The invention is characterised in that it comprises at least a convergent optical assembly (500) overlapping one first of the two cells (300, 400) and whereof the focus, defined relative to the light path in the switch, is proximate to the plane of the other cell, and the or each convergent optical assembly (500) has its optical center (X) bordering a deflecting cell (300, 400), substantially perpendicular to the center on one side of said cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.