The holographic double-exposure technique is applied to elementary gratings in photorefractive crystals. The result is an interconnection strength that is a continuous function of the phase shift between the two gratings. In fan-in and fan-out situations, where multiple phase gratings are required, it is possible to alter each interconnection separately without affecting the others.
© 1989 Optical Society of America
Original Manuscript: August 19, 1988
Manuscript Accepted: December 20, 1988
Published: March 15, 1989
Abdellatif Marrakchi, "Continuous coherent erasure of dynamic holographic interconnects in photorefractive crystals," Opt. Lett. 14, 326-328 (1989)