title: Dispersion-corrected frequency-resolved optical gating.
abstract: The phase retrieval algorithm of a frequency-resolved optical gating (FROG) is generalized to handle traces seriously distorted by group delay dispersion and non-uniform phase-matching spectra arising from the nonlinear crystal. In our proof-of-concept experiments, 15 mm thick aperiodically poled lithium niobate was employed in FROG, and successfully reconstructed chirped signal pulses were actually stretched by >5 times inside the crystal. This method is particularly promising in the measurement of weak few-cycle pulses produced by supercontinuum generation in fibers.
authors.forename: Po-Ya
authors.initials: PY
authors.lastname: Wu
authors.forename: Hsuan-Hao
authors.initials: HH
authors.lastname: Lu
authors.forename: Ching-Zhe
authors.initials: CZ
authors.lastname: Weng
authors.forename: Yen-Hung
authors.initials: YH
authors.lastname: Chen
authors.forename: Shang-Da
authors.initials: SD
authors.lastname: Yang