NDLI: Multichannel /spl plusmn/ 1.1-kV arbitrary waveform generator for beam steering using ferroelectric device

Content Provider	IEEE Xplore Digital Library
Author	Muhammad, F. Chandramani, P. Ekman, J. Kiamilev, F. Scrymgeour, D. Gopalan, V. Moore, E. Weiler, M.
Copyright Year	1989
Abstract	Ferroelectric devices are one of the options available for beam steering. Applying an electric field to a ferroelectric beam deflector controls the direction of the light that propagates through the device. Currently, these devices require relatively high-driving voltages. In this paper, we present an arbitrary waveform generator designed to provide the driving voltages needed. It has five independent output channels, each capable of producing an arbitrary /spl plusmn/ 1.1-kV signal at up to 10 kHz, with 10 mA of drive current. Our design can achieve a total deflection angle of 62.5/spl deg/ with a five-stage ferroelectric beam deflector. It has been tested driving a two-stage LiTaO/sub 3/ ferroelectric beam deflector achieving a total deflection angle of 25/spl deg/. With 16-bit resolution, the driver accurately controls the propagation path of the beam from the first-stage deflector to the second-stage deflector for further deflection. No commercial equipment is available to drive multistage ferroelectric beam-deflector devices. Our design provides a low-cost and compact solution that can be readily adapted for application and device specific requirements.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1605
Ending Page	1607
Page Count	3
File Size	196587
File Format	PDF
ISSN	10411135
Volume Number	14
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal generators Beam steering Ferroelectric materials Voltage Crystals Optical refraction Aerospace electronics Very large scale integration Lighting control Optical propagation
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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