Title :
Variable delay for acoustic surface waves by electro-acousto-optic interaction
Author :
Luukkala, M. ; Meril¿¿inen, P.
Author_Institution :
University of Helsinki, Department of Physics, Helsinki, Finland
Abstract :
Continuosly variable analogue delay is demonstrated by using reflections from a laser-light-induced impedence discontinuity on a photoconductive layer evaporated on an LiNbO3 delay line at 75 MHz. ¿30dB reflection loss is obtained with a delay range of 20 ¿s.
Keywords :
acoustic surface wave devices; acousto-optical effects; acoustoelectric effects; electro-optical effects; lithium compounds; ultrasonic delay lines; 75 MHz; CdSe films; LiNbO3; acoustic surface wave devices; acoustoelectric effects; acoustooptical effects; electrooptical effects; laser beam application; ultrasonic delay lines;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19730345
