Efficient multiple-beam Bragg acoustooptic diffraction with phase optimization of a multifrequency acoustic wave
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The subject of investigation is the formation of a highly efficient multiple-beam diffraction field resulting from acoustooptic diffraction by a periodically modulated acoustic wave and acoustic signal composed of a set of independently generated equidistant frequency components. Conditions for minimization of optical losses associated with higher diffraction orders are analyzed. A highly efficient multiple-beam diffraction field is formed by optimizing the phases and amplitudes of signal independent components. A technique of acoustooptic measurements at a high laser radiation intensity is developed, and the basics of the theory are verified experimentally. An attempt to split the power of a laser beam propagating through an optical fiber into seven channels of equal intensities is realized with a net efficiency of 80%.
Original Russian Text © S.N. Antonov, Yu.G. Rezvov, 2007, published in Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 77, No. 8, pp. 93–100.
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- Efficient multiple-beam Bragg acoustooptic diffraction with phase optimization of a multifrequency acoustic wave
Volume 52, Issue 8 , pp 1053-1060
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- 1. Institute of Radio Engineering and Electronics, Russian Academy of Sciences, pr. Vernadskogo 88, Fryazino, Moscow oblast, 141190, Russia
- 2. Novomoskovsk Institute, Russian Chemicotechnological University, Novomoskovsk, Tula oblast, 301665, Russia