Experimental study of the use of multiband acousto-optic filters for spectral encoding / decoding the optical signals

5th International Conference of Photonics and Information Optics

Proklov, V.V.^1,2 ; Byshevski-Konopko, O.A.^1 ; Filatov, A.L.^1 ; Lugovskoi, A.V.^1 ; Pisarevsky, Yu V.^1

Institute of Radioengineering and Electronics, Russian Academy of Sciences, Vvedensky sq. 1, Fryazino, Moscow region

141190, Russia^1

Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow

119333, Russia^2

关键词: Acousto-optic filters;    Multiband;    Near-infrared range;    Optical signals;    Signal to interference ratios (SIR);    Spectral coding;    Spectral encoding;    Walsh sequences;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/737/1/012060/pdf
DOI  :  10.1088/1742-6596/737/1/012060

来源: IOP

【 摘 要 】

A prototype of the acousto-optic (AO) decoder of optical signals is created on the base of the multiband AO filter. The joint work of the decoder with the developed previously AO coder has been verified experimentally. The main qualitative and quantitate characteristics of the spectral coding and decoding by Walsh sequences of the industrial LED radiation in the near infrared range are investigated. It is shown, that in the proposed data transmission system realization Signal-to-Interference Ratio (SIR) is not less than 13 dB.