Journal
OPTICS EXPRESS
Volume 19, Issue 14, Pages 12961-12968Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.012961
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- Howard Hughes Medical Institute
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We show through experiments and simulations that parallel phase modulation, a technique developed in the field of adaptive optics, can be employed to quickly determine the spectral phase profile of ultrafast laser pulses and to perform phase compensation as well as pulse shaping. Different from many existing ultrafast pulse measurement methods, the technique reported here requires no spectrum measurements of nonlinear signals. Instead, the power of nonlinear signals is used directly to quickly measure the spectral phase, a convenient feature for applications such as two-photon fluorescence microscopy. The method is found to work with both smooth and even completely random distortions. The experimental results are verified with MIIPS measurements. (C) 2011 Optical Society of America
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