Integrated optic a.d. convertor based on bulk acousto-optic interaction

1980 ◽  
Vol 16 (10) ◽  
pp. 359 ◽  
Author(s):  
M. Gottlieb ◽  
G.B. Brandt
Keyword(s):  
Acousto Optic Interaction

scholarly journals Acousto-Optic Cells with Phased-Array Transducers and Their Application in Systems of Optical Information Processing

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 451
Author(s):  
Vladimir Balakshy ◽  
Maxim Kupreychik ◽  
Sergey Mantsevich ◽  
Vladimir Molchanov
Keyword(s):  
Phased Array ◽  
Power Conversion ◽  
Experimental Studies ◽  
Acoustic Power ◽  
Acoustic Mode ◽  
Bragg Angle ◽  
Excitation Band ◽  
Acousto Optic Interaction ◽  
Array Transducer ◽  
New Type

This paper presents the results of theoretical and experimental studies of anisotropic acousto-optic interaction in a spatially periodical acoustic field created by a phased-array transducer with antiphase excitation of adjacent sections. In this case, contrary to the nonsectioned transducer, light diffraction is absent when the optical beam falls on the phased-array cell at the Bragg angle. However, the diffraction takes place at some other angles (called “optimal” here), which are situated on the opposite sides to the Bragg angle. Our calculations show that the diffraction efficiency can reach 100% at these optimal angles in spite of a noticeable acousto-optic phase mismatch. This kind of acousto-optic interaction possesses a number of interesting regularities which can be useful for designing acousto-optic devices of a new type. Our experiments were performed with a paratellurite (TeO2) cell in which a shear acoustic mode was excited at a 9∘ angle to the crystal plane (001). The piezoelectric transducer had to nine antiphase sections. The efficiency of electric to acoustic power conversion was 99% at the maximum frequency response, and the ultrasound excitation band extended from 70 to 160 MHz. The experiments have confirmed basic results of the theoretical analysis.

Harmonic modulation of light by means of collinear acousto-optic interaction

2009 ◽  
Vol 48 (7) ◽  
pp. C112 ◽  
Author(s):  
Yuri Zyuryukin ◽  
Alexander Yulaev
Keyword(s):  
Acousto Optic Interaction ◽  
Harmonic Modulation

scholarly journals Dependence of the energy efficiency of the acousto-optic modulator of terahertz radiation on the dimensions of the ultrasound transducer

2021 ◽  
Vol 2091 (1) ◽  
pp. 012011
Author(s):  
P A Nikitin ◽  
A K Nikitin
Keyword(s):  
Energy Efficiency ◽  
Experimental Investigation ◽  
Terahertz Radiation ◽  
Sulfur Hexafluoride ◽  
Maximum Energy ◽  
Ultrasound Transducer ◽  
Optimal Size ◽  
Acousto Optic Interaction ◽  
Acousto Optic Modulator ◽  
Ultrasound Power

Abstract The paper presents results of experimental investigation of an acousto-optic modulator of terahertz radiation based on liquefied sulfur hexafluoride. It was found that the intensity of diffracted radiation at a fixed ultrasound power depends on the dimensions of the ultrasound transducer. The optimal size of the ultrasound transducer in the direction orthogonal to the plane of the acousto-optic interaction was determined, at which the maximum energy efficiency of the acousto-optic modulator was achieved.

Phase object visualization at Bragg acousto-optic interaction

2005 ◽  
Author(s):  
Vladimir I. Balakshy ◽  
Dmitry E. Kostyuk
Keyword(s):  
Phase Object ◽  
Acousto Optic Interaction

Acousto-optic interaction induced photonic band gaps in silicon slab waveguides

2014 ◽  
Author(s):  
Jin-Chen Hsu ◽  
Chiang-Hsin Lin ◽  
Jheng-Hong Shih ◽  
Tzy-Rong Lin
Keyword(s):  
Band Gaps ◽  
Photonic Band Gaps ◽  
Acousto Optic Interaction ◽  
Slab Waveguides ◽  
Photonic Band ◽  
Silicon Slab

Time-resolved acousto-optic interaction in single-mode optical fibers: characterization of axial nonuniformities at the nanometer scale

2014 ◽  
Vol 39 (6) ◽  
pp. 1437 ◽  
Author(s):  
E. P. Alcusa-Sáez ◽  
A. Díez ◽  
M. González-Herráez ◽  
M. V. Andrés
Keyword(s):  
Optical Fibers ◽  
Single Mode ◽  
Nanometer Scale ◽  
Time Resolved ◽  
Acousto Optic Interaction
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