APPARATUS AND METHOD FOR MEASURING AND CONTROLLING CHIRP OF ULTRAFAST LASER PULSE
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United States of America Patent
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Oct 5, 2023
app pub date -
Mar 2, 2023
filing date -
Mar 2, 2023
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Abstract
An aspect of the present disclosure is related to a method for measuring and controlling linear chirp level of ultrafast laser pulse. The method includes steps as follows. A carrier-envelope phase-chirp (CEP-chirp) relation which serve as a chirp monitor is extracted, in which the CEP-chirp relation is generated from an ultrafast laser pulse. A linear chirp level of a target pulse is measured in response to the CEP-chirp relation. According to the measuring with respect to the linear chirp level of the target pulse, a dispersion element which the ultrafast laser pulse passes through is varied to control and stabilize the linear chirp level of the target pulse.
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