Publishing house Radiotekhnika

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The subject of the present investigation is fiber-optic transducers containing Fabry-Perot interferometer. The modulation of laser current and the forming of the output signal as the ratio of the amplitude of low harmonics are suggested for decreasing of the error due to varia­tions in the attenuation of feed and return fibre paths, in the optical power levels launched at the receiver and in the sensitivity of the photo­detector of the transducer. Analysis of the output characteristic depending on the different parameters was carried out and low harmonic relations were received.



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