Resonant multiplexer-demultiplexer for optical data communication systems

摘要

An improved optical data terminal device employs an array of multiple mode optical fiber guides as input-output devices, each abutted against a flat input-output focal face of an electrooptically active plate provided with opposed spiral-edged deflection modulation electrodes. Opposite the input-output focal face is a cylindrical mirror surface for refocussing the deflected light from any predetermined input fiber guide into a second one of the array of fiber guides selected by the voltage applied to the electrode pair. Resonant excitation of the deflection electrodes may be employed.