The Effect of Variation of the Fabry-Perot-Michelson Interferometer Parmaeters on the Sensitivity of Interferometric Detectyors of Gravitation Waves

摘要

The characteristics of a laser Fabry-Perot-Michelson interferometer intended for detecting ultrasmall displacements caused by gravitational waves are investigated. The results of numerical calculations of the signal-to-shot-noise ratio variations as a result of emergence of asymmetry in the arms (e.g., in the case of disbalance of loss and transmittance of the mirrors in two fabry-Perot interferometers) are considered. The required degree of laser and interferometer mode matching is estimated and the effect of the output mode cleaner is revealed.