Patent ID: 9354120
Filing Date: 2016-05-31
CPC Classification: G01J,G04F

Claim Text:
1. An autocorrelator, comprising: a light source unit configured to generate an optical pulse; a double-wedge interferometer arranged so that facing surfaces of a first wedge and a second wedge, which are wedge-shaped optical media, are parallel to each other, and configured to generate two optical pulses by dividing the optical pulse provided by the light source unit; a harmonic wave medium configured to receive the two generated optical pulses, and generate a secondary harmonic wave; and a measurement unit configured to detect the secondary harmonic wave and generate an autocorrelation signal, wherein the double-wedge interferometer is configured so that the facing surfaces of the first wedge and the second wedge are parallel to each other and the first wedge and the second wedge are symmetric with respect to a plane located in the center of an interval between the first wedge and the second wedge.