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

N. M. Medved; A. V. Gnatovskii; Leonid K. Yarovoi

doi:10.1117/12.307689

1 June 1998 Correction and correlation formation of probing field in fiber laser Doppler anemometers and vibrometers

N. M. Medved, A. V. Gnatovskii, Leonid K. Yarovoi

Proceedings Volume 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1998) https://doi.org/10.1117/12.307689
Event: Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1998, Ancona, Italy

Abstract

In this work, we offer a method of a field formation with given spatial features at the output of multimode fiber sensors using interference phenomena. Then 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.

Citation Download Citation

N. M. Medved, A. V. Gnatovskii, and Leonid K. Yarovoi "Correction and correlation formation of probing field in fiber laser Doppler anemometers and vibrometers", Proc. SPIE 3411, Third International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (1 June 1998); https://doi.org/10.1117/12.307689

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