Investigation of the vibration behaviour of optomechanical convergence system of multiple pump beams

Abstract

Vibrations of optomechanical convergence system of multiple-beam pumped optical parametric amplifier are analyzed in this paper. The case when exciting force frequency was less than natural frequency of optical table was studied. Obtained results show that the mirror becomes unstable at frequency of about 29 Hz if the amplitude is increased. Mirror remains stable at other frequencies.