A second-order autocorrelator for single-shot measurement of femtosecond laser pulse durations
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- Raghuramaiah, M., Sharma, A.K., Naik, P.A. et al. Sadhana (2001) 26: 603. doi:10.1007/BF02703461
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A second-order autocorrelator for single-shot measurement of ultrashort laser pulse durations has been set up. It is based on recording the spatial profile of non-collinear phase-matched second harmonic generation in a KDP crystal using a CCD camera-framegrabber combination. Performance of the system is described from measurement of 250 femtosecond transform-limited laser pulses from a passively mode-locked, diode pumped Nd:glass laser. It can also be used for measurement of picosecond laser pulses in the multi-shot scanning mode.