Laboratory of Optical and Quasioptical Investigation and Optoelectronic Devices Design for Infocommunication Systems

Setup for measuring the quality of acousto-optic crystal materials by Dixon-Cohen method

Fig. 1. Experimental setup for determination of the elastooptical coefficients and the figure of merit in crystalline materials by Dixon-Cohen method

Fig. 2. Block-diagram and the typical signal observed on the screen of the oscilloscope: 1 –-207 laser; 2 – sample under test; 3 – reference sample; 4 - photodetector (-256 photodiode); 5 – 5-65 pulse generator; 6 –4-143 HF generator; 7 – piezotransducer; 8 – oscilloscope.