Method and device for measuring the phase and amplitude of ultrashort light pulses
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United States of America Patent
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Mar 18, 2008
Grant Date -
Nov 13, 2003
app pub date -
May 1, 2003
filing date -
May 7, 2002
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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.
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