Direct B-integral measurement, and SPM compensation in fiber optic CPA systems
2014
A direct B-integral measurement, and SPM compensation method in fiber optic CPA systems is demonstrated. For a pair
of input pulses, the chirped nature of the amplification transforms a nonlinear phase change into a temporal amplitude
change resulted in a satellite side pulses generation. The SHG autocorrelation measurement of these satellite pulses is
directly correlated to B-integral value. Then the accumulated SPM is removed by precompensation of the spectral
phase. The degree of compensation again confirmed the described B-integral measurement result.
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