OPTICALLY CONTROLLED PHASED-ARRAY RADAR RECEIVER USING SLM SWITCHED REAL-TIME DELAYS

作     者：FETTERMAN, HR CHANG, Y SCOTT, DC FORREST, SR ESPIAU, FM WU, M PLANT, DV KELLY, JR MATHER, A STEIER, WH OSGOOD, RM HAUS, HA SIMONIS, GJ 

作者机构：Department of Electrical Engineering University of California Los Angeles Los Angeles CA USA Advanced Technology Center for Photonics and Optoelectronic Materials Princeton University Princeton NJ USA Department of Electrical Engineering McGill University Montreal Canada Liquid Crystal Institute Kent University Kent OH USA Department of Electrical Engineering University of Southern California Los Angeles CA USA Department of Electrical Engineering and Applied Physics Columbia University NY USA Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge MA USA Army Research Laboratory Adelphi USA 

出 版 物：《IEEE MICROWAVE AND GUIDED WAVE LETTERS》 (IEEE Microwave Guided Wave Lett)

年 卷 期：1995年第5卷第11期

页      面：414-416页

核心收录：

基　　金：National Center for Integrated Photonics Technology Air Force Office of Scientific Research, AFOSR 

主　　题：Optical control Optical receivers Phased arrays Optical arrays Laser radar Optical modulation Optical network units Delay effects Optical fiber networks Liquid crystals 

摘      要：We report the results of a demonstration of a real time delay, optically controlled phased array radar receiver. This implementation employed a free space configuration based upon an optical switching network using liquid crystal spatial light modulators (SLM s). A three-delay unit, two-antenna array receiver was implemented at an optical wavelength of 1.3 mu m and demonstrated squint-free operation over the entire X-band (8-12 GHz) with an angular accuracy of 1.4 degrees. Finally, a novel configuration for the two-antenna element SLM architecture was proposed and demonstrated equivalent system performance with a reduction in the number of components.