An approach, based on the correlation between the intensity distribution of object wave of the directly recorded by charge-coupled device and the one reconstructed by computer, is proposed to evaluate the quality of the phase reconstruction in light emitting diode (LED) based phase-shifting digital holography. This method enables us to find out the optimal reconstructed phase even though the peak wavelength of LED, which is used for calibrating the phase-shifter, is inconvenient to be determined and tends to shift with temperature and driving current. The feasibility of this method is verified by both computer simulations and experiments.
© 2009 Chinese Optics Letters
Yi Qin and Jingang Zhong, "Quality evaluation of phase reconstruction in LED-based digital holography," Chin. Opt. Lett. 7, 1146-1150 (2009)