Tuneable phase shifter and/or attenuator using photoresponsive-material in a waveguide
US7283019B2 · kind B2 · utility
1Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Oct 26, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/222
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a tuneable phase shifter and/or attenuator comprising a waveguide having a channel and a piece of photo-responsive material (18) disposed within the waveguide along an internal wall of said channel, a light source disposed outside the waveguide to emit light through an aperture (30) of said internal wall to impinge on at least part of an outside surface of said piece of photo-responsive material (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.