High on-off ratio ultrafast optical switch for optically controlled phased array

摘要

Abstract: A novel high-speed, high on-off ratio ($GRT 50 dB) fiber-optical shutter switch for optically controlled phased array is proposed. Computer aided design (CAD) tools for the development of the switch and the phased array have been developed. The beam steering, shaping, and forming are achieved by controlling the on-off status of the fiber shutter switches. The advantages of the phase-array antenna using this new device are to possess higher antenna gain, lower sidelobes and higher speed. This fiberoptic switch can also be used as a fiberoptic variable attenuator, isolator, and spatial light modulator for various other applications.!