Method and device for measuring the phase and amplitude of ultrashort light pulses
AssigneeFastlite
InventorsManuel Joffre, Thomas Oksenhendler, Daniel Kaplan, Pierre Tournois
Life of this patent
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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.
Claims16
Method for measuring the phase and amplitude of ultrashort pulses of a light signal, said method comprising:
- linear optical filtering of said light signal by exclusive means of an acoustic interaction between said light signal and a collinear or quasi-collinear acoustic beam,
- mixing in a non-linear response electro-optic element of optical beam diffracted by said collinear or quasi-collinear acoustic beam means of detection of above mixed beam.
Device for measuring the phase and amplitude of ultrashort pulses of a light signal said device comprising a component carrying out an acousto-optic interaction between said light signal and collinear or quasi-collinear acoustic and optical beams and at least one integrator-detector for detecting the square of the light intensity diffracted by the acoustic beam.
Device for measuring the phase and amplitude of ultrashort light pulses of a light signal, said device comprising a component carrying out an acousto-optic interaction between the light signal and collinear or quasi-collinear acoustic beams, at least one non-linear optical crystal for mixing the optical signals of the light signal beam diffracted by the collinear or quasi-collinear acoustic beam and at least one integrator detector for detecting the light intensity derived from said mixing crystal.
Method for measuring the phase and amplitude of ultrashort pulses of a light signal, said method comprising:
- linear optical filtering of said light signal by means of an acoustic interaction between said light signal and a collinear or quasi-collinear acoustic beam,
- effecting at least one detection-integration of the square of the light intensity diffracted by the collinear or quasi-collinear acoustic beam.
Dependencies are inferred from the claim text.