Correction and correlation formation of probing field in the fiber laser Doppler anemometers and vibrometers

Abstract

In this work we offer the method of field formation with given spatial features at the output of multimode fiber sensors using interference phenomena. The method consists of a field two-stage correlation transformation at a fiber output. Transformation is realized by a phase modulator and a hologram. The developed method is practically realized in the fiber Doppler anemometer and vibrometer scheme. Features of sensors are discussed in this work.