This paper describes a memory realized with a high data transfer rate using the holographic parallel-processing function and its application to an audio response system that supplies many audio messages to many terminals simultaneously. Digitalized audio messages are recorded as tiny 1-D Fourier transform holograms on a holographic disk. A hologram recorder and a hologram reader were constructed to test and demonstrate the holographic audio response memory feasibility. Experimental results indicate the potentiality of an audio response system with a 2000-word vocabulary and 250-Mbit/sec bit transfer rate.
© 1980 Optical Society of America
K. Kubota, Y. Ono, M. Kondo, S. Sugama, N. Nishida, and M. Sakaguchi, "Holographic disk with high data transfer rate: its application to an audio response memory," Appl. Opt. 19, 944-951 (1980)