Title :
Optically controlled serially fed phased array sensor
Author :
Cohen, David A. ; Chang, Yian ; Levi, A.F.J. ; Fetterman, Harold R. ; Newberg, Irwin L.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A new type of RF-photonic sensor design which uses an optical serially fed phased array is proposed for applications in radar and communication systems. This sensor has the advantages of true time delay and yet only requires one tunable laser and one fiber optic grating delay for beam steering. In addition to discussing the system operation in transmit and receive modes, we also present initial experiments establishing the viability of the basic serial-feed design approach.
Keywords :
antenna phased arrays; diffraction gratings; laser tuning; optical communication equipment; optical delay lines; optical fibres; optical sensors; RF-photonic sensor design; beam steering; communication systems; fiber optic grating delay; optically controlled serially fed phased array sensor; radar systems; receive modes; serial-feed design approach; system operation; transmit modes; true time delay; tunable laser; Communication system control; Delay effects; Laser radar; Optical arrays; Optical control; Optical design; Optical sensors; Phased arrays; Sensor arrays; Sensor systems and applications;
Journal_Title :
Photonics Technology Letters, IEEE
