Abstract
Here we review the phase related measurements, that is, the dispersion measurement andthe pulse chirp measurement, which lay fundamental bases for the modern ultrafast optics. With an emphasis on the interferometric correlation methods, various methods are categorizedand compared. Recent advance in the dispersion-meter enables femtosecond group-delaymeasurements up to the laser cavity. For the pulse-form evaluation, novel methods using reconstruction algorithm can lead to the full-and detailed determination of the pulse electricfield.
