Method and device for measuring the phase and amplitude of ultrashort light pulses
US7345768B2 · kind B2 · utility
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13References
16Claims
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Key dates
| Filing date | May 1, 2003 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring ultrashort light pulse which comprises a first step of linear optical filtering of the signal for which it is desired to measure the amplitude of the pulses by means of an acoustic interaction between the optical signal and a colinear or quasi-colinear acoustic beam, a second step of either mixing in a non-linear response electro-optical element of optical beams diffracted by the acoustic beam, followed by one detector for detecting the light intensity derived from the mixer, or effecting one integration detection of the square of the optical intensity diffracted by the acoustic beam.
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