Abstract: An apparatus and method to measure optical intensity and phase of one or several light pulses is described. The apparatus combines a spectrally resolved interferometric asymmetric single-shot optical autocorrelator and imaging spectrograph. The asymmetric design of the optical autocorrelator based on second harmonic generation eliminates time-direction ambiguity, while a spectrally resolved interferometric pattern allows the performance of self-check and self-calibration of the apparatus and substantially improves convergence, robustness and reliability of the computational retrieval algorithm.
Type:
Application
Filed:
April 30, 2002
Publication date:
December 5, 2002
Applicant:
Excel/Quantronix Corp.
Inventors:
Qiang Fu, Sergei Petrovich Nikitin, Anatoly Viktorovich Masalov