title: Direct spectral phase retrieval of ultrashort pulses by double modified one-dimensional autocorrelation traces.
abstract: We propose and experimentally demonstrate an original method to analytically retrieve complete spectral phase of ultrashort pulses by measuring two modified interferometric field autocorrelation traces using thick nonlinear crystals with slightly different central phase-matching wavelengths. This new scheme requires no spectrometer, detector array, nor iterative data inversion, and is compatible with periodically poled lithium niobate (PPLN) waveguide technology offering potential for high measurement sensitivity.
authors.affiliation: Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan. shangda@ee.nthu.edu.tw
authors.forename: Shang-Da
authors.initials: SD
authors.lastname: Yang
authors.forename: Chen-Shao
authors.initials: CS
authors.lastname: Hsu
authors.forename: Shih-Lun
authors.initials: SL
authors.lastname: Lin
authors.forename: Houxun
authors.initials: H
authors.lastname: Miao
authors.forename: Chen-Bin
authors.initials: CB
authors.lastname: Huang
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Weiner
mesh_terms: D003198:Computer Simulation; D007368:Interferometry / Q000379:methods*; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation