Direct spectral phase retrieval of ultrashort pulses by double modified one-dimensional autocorrelation traces.
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.
Yang
Shang-Da
SD
Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan. shangda@ee.nthu.edu.tw
Hsu
Chen-Shao
CS
Lin
Shih-Lun
SL
Miao
Houxun
H
Huang
Chen-Bin
CB
Weiner
Andrew M
AM
D003198:Computer Simulation; D007368:Interferometry / Q000379:methods*; D008027:Light; D008962:Models, Theoretical; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation