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Correction and correlation formation of probing field in fiber laser Doppler anemometers and vibrometers |
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| Authors: | L. Yarovoi A. Gnatovskii N. Medved |
| Affiliation: | a Training and Science Center “Physical and Chemical Materials Science” of Kyiv University by Taras Shevtchenko and National Academy of Sciences of Ukraine, 64, Volodimirskaya St., Kyiv 252017, Ukraine b Institute of Physics of National Academy of Science of Ukraine, 46, prosp. Nauki, Kyiv 191028, Ukraine |
| Abstract: | In this work we offer a 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. |
| Keywords: | Correlation optics Laser Doppler vibrometry and anemometry Fiber sensors Correction of laser beams |
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