  We report a new technique for the realization of second-order correlation
($g^2(\tau)$) measurement under low-repetition-rate pulsed excitation (1 kHz),
with timing jitter calibrated to restore lateral $g^2(\tau)$ curves and
determine $g^2(0)$. We use CdSe nanowire (NW) laser to demonstrate the
jitter-calibrated $g^2(\tau)$ measurement, where $g^2(0)$ evolution shows the
laser emission transition process. The exciting pulses are split into reference
and excitation channels, which enables the jitter calibration when the exciting
pulses have significant timing jitter and low repetition rate. After using the
reference signals to calibrate and rearrange the single-photon signals, lateral
$g^2(\tau)$ curves can be entirely restored, and $g^2(0)$ evolution is
demonstrated from our method.
