The main aim of the work is to create a numerical model of acoustic wave propagation in rigid rod. Vibrations of the end of the rod will be recorded by an optical method. Developed model can help to find the optimal parameters to create a real physical system for the efficient optical registration of the acoustic signal.
$^1$ Department of Photonics and Microwave Physics, Faculty of Physics, Lomonosov Moscow State University. Moscow 119991, Russia.
$^2$ N.N. Andreyev Acoustic Institute, Moscow 117036, Russia.
$^3$ Moscow Institute of Physics and Technology (State University), Moscow 117303, Russia.