Fidelity holographic recording in a Ce : KNSBN crystal with incoherent erasing technique
The incoherent erasing technique is applied on a Ce : KNSBN photorefractive crystal to achieve fidelity holographic recording. Because of the erasing of the fanning by the ordinary component of the reference beam, while the polarization of the reference beam is set to form an angle of ϕ = 30° with respect to its extraordinary polarization, the intensity of the output signal beam is enhanced twice and the signal-to-noise intensity ratio of the output signal beam is improved nearly three times. The fanning noise is greatly suppressed and the quality of the reconstructed image undegoes obvious enhancement.
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