Process and device for characterising an electric signal propagating in a sample
US8421493B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 7, 2007 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/071
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for characterizing an electric signal (10), includes the propagation of a first light beam (18) through an electro-optical medium (17) in a first propagation direction, wherein at least one optical property of the medium changes when it is submitted to an electrical field, and the propagation of a second light beam (19) through the electro-optical medium in a second propagation direction different from the first direction. For each light beam, a measurement of a variation in an optical property of the light beam (18; 19) due to the propagation of the beam in the medium (17) is used for determining the propagation direction (20) of an electric signal (10) submitting the medium to an electrical field. A device for implementing the method, and an electro-optical probe implemented in the device are also disclosed. Applicability: electro-optical sampling of a component, characterization of electric pulses in guided structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.