Abstract
A simple and general technique for recovering the phase profile of a given optical waveform from temporal intensity measurements is introduced and experimentally demonstrated. The proposed method involves the measurement of the temporal intensity profiles at the input and output of a linear optical time differentiator. The signal phase profile can be unambiguously recovered from these intensity measurements using a direct and noniterative algorithm. Given that ultrafast optical differentiators can be readily implemented in all-fiber or free-space platforms, the proposed technique could be applied over time waveforms with durations ranging from the subpicosecond to the nanosecond regime.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Fangxing Li, Yongwoo Park, and José Azaña
Opt. Lett. 34(18) 2742-2744 (2009)
Naum K. Berger, Boris Levit, Baruch Fischer, Mykola Kulishov, David V. Plant, and José Azaña
Opt. Express 15(2) 371-381 (2007)
Y. Park, J. Azaña, and R. Slavík
Opt. Lett. 32(6) 710-712 (2007)