Optical system for correcting a distortion of ultrashort laser pulse

摘要

The present invention includes the first prism installed at a location from which the ultrashort laser pulse is transferred through, the second prism installed along to the straight direction of the ultrashort laser pulse passing through the first prism, and the third prism installed along to the straight direction of the ultrashort laser pulse passing through the second prism, the first prism the fourth prism installed to the straight direction of the ultrashort laser pulse passing through the third prism, and an optical system for the distortion compensation of the ultrashort laser pulse in which the second distance between the first distance of the second, third and fourth prisms are different, so that a compensation for the spatial chirp can be processed by the invention. [Reference numerals] (AA) Distorted femto laser pulse