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Optimization of the Operational Parameters of an Acousto-Optical Delay Line

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Abstract

An analysis of the operational parameters of an acousto-optic delay line (AODL) with direct detection, that is, the range of continuously controlled signal delay and the cutoff frequency of the passband, has been carried out. It is shown that the range of the smoothly controlled signal delay is limited by the maximum length of the photoelastic cell and the minimum velocity of propagation of the elastic wave in it. At the same time, the cutoff frequency is directly determined by the time of crossing the optical beam by the elastic wave packet. An equation for the transient response of the AODL was obtained, which was then used to study the nature of the dependence of the cutoff frequency of the transmission band on the diameter of the light beam and the velocity of propagation of an elastic wave in a photoelastic cell. The results of the numerical analysis were tested experimentally on the AODL model with direct detection.

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Authors and Affiliations

  1. Azerbaijan National Aviation Academy, AZ1045, Baku, Azerbaijan

    A. R. Gasanov, R. A. Gasanov, R. A. Akhmedov & M. V. Sadykhov

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  1. A. R. Gasanov
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  2. R. A. Gasanov
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  3. R. A. Akhmedov
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  4. M. V. Sadykhov
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Correspondence to A. R. Gasanov.

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Gasanov, A.R., Gasanov, R.A., Akhmedov, R.A. et al. Optimization of the Operational Parameters of an Acousto-Optical Delay Line. Instrum Exp Tech 64, 415–419 (2021). https://doi.org/10.1134/S0020441221020135

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  • DOI: https://doi.org/10.1134/S0020441221020135

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