Abstract

Although numerous self-referenced techniques have been proposed and demonstrated to measure or characterize the time-dependent phase and amplitude of ultrashort pulses, all techniques suffer from specific weaknesses. To overcome the drawbacks, limitations or ambiguities related to a particular technique, crosscheck between several techniques is often required to improve the measurement or eliminate spurious results. However, crosschecking between techniques as different as SH-FROG[2] and SPIDER[1] is often made difficult by the fact that they involve separate measurement devices, which multiplies the causes of systematic experimental errors: calibration of the detectors, dispersion of the optical elements...

© 2007 IEEE