Time- and Frequency-Domain Characteristics of Direct-Detection Acousto-Optic Delay Lines
- Autores: Hasanov A.1, Hasanov R.1, Ahmadov R.1, Agayev E.1
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Afiliações:
- Azerbaijan National Aviation Academy
- Edição: Volume 62, Nº 9 (2019)
- Páginas: 817-824
- Seção: Article
- URL: https://journals.rcsi.science/0543-1972/article/view/246784
- DOI: https://doi.org/10.1007/s11018-019-01700-3
- ID: 246784
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Resumo
We discuss various details regarding the practical use of direct-detection acousto-optic delay lines, and develop a mathematical model for the input signal. An expression for the transient response was obtained and used to determine the acousto-optic delay line response to an boxcar input signal. This expression for the transient response was used to determine the cutoff frequency of the acousto-optic delay line and derive an equation for the impulse response to determine the acousto-optic transmission coefficient of the acoustooptic delay line as a function of frequency. The resulting equations are confirmed by numerical examples. The numerical results were in turn experimentally validated using the direct-detection acousto-optic delay line model developed in this paper. The theoretical and experimental results were compared using two criteria: the output response to a boxcar input signal and the cutoff frequency of the frequency response curve. The cutoff frequency was obtained using an oscillogram of the output pulse and the experimentally determined frequency response. A comparison of the theoretical and experimental results indicated that the time- and frequency-domain equations for the response curves have high potential for time-domain processing of broadband analog signals.
Sobre autores
A. Hasanov
Azerbaijan National Aviation Academy
Autor responsável pela correspondência
Email: afi.g.gasanov.51@mail.ru
Azerbaijão, Baku
R. Hasanov
Azerbaijan National Aviation Academy
Email: afi.g.gasanov.51@mail.ru
Azerbaijão, Baku
R. Ahmadov
Azerbaijan National Aviation Academy
Email: afi.g.gasanov.51@mail.ru
Azerbaijão, Baku
E. Agayev
Azerbaijan National Aviation Academy
Email: afi.g.gasanov.51@mail.ru
Azerbaijão, Baku