Large-scale holographic switch with a ferroelectric liquid-crystal spatial light modulator

We have proposed a holographic switch with a ferroelectric liquid-crystal spatial light modulator for a large-scale switch. 4 × 1204 switching was demonstrated to show that the proposed switch structure is suitable for a large-scale switch. The average losses of the four inputs were 28, 33, 35, and 36 dB. The average crosstalk-to-signal ratio of one of the inputs was-16 dB.