The experiment requires a CCD camera to capture images in coherence time (~10 ms), while the exposure time window
is required to be much longer than the width of light pulses to make sure that the image of reference beam can be captured.
We choose a commercial CCD camera from ALLIED for the experiment whose frame rate reaches 125 fps at the full resolution of 656*492. The exposure time can be set from 32μS to 67S. The CCD camera can meet the requirements of
data acquisition for reference beam.