Wide-aperture diffraction of unpolarised radiation in a system of two acousto-optic filters

Magdich, L. N.; Yushkov, Konstantin B.; Voloshinov, V. B.

doi:10.1070/qe2009v039n04abeh013904

Cited by 10 publications

(4 citation statements)

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“…A number of works are devoted to this problem. [27][28][29][30][31] The two-crystal scheme allows to create a polarization-insensitive deflector on TeO 2 with potential efficiency up to 100%. 32,33 For Figure 14 shows a vector diagram using two AOD.…”

Section: Deflector Of Nonpolarized Laser Radiationmentioning

confidence: 99%

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A review of physical principles and applications of acousto-optic deflectors on the basis paratellurite

Антонов¹,

Kotelnikov²

2019

PAIJ

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Deflectors based on Bragg non-axial anisotropic diffraction in a paratellurite crystal are considered. Practically significant relations connecting the main parameters are obtained, the factors limiting the diffraction efficiency and the angular scanning range are determined. The mode of multibeam acousto-optic diffraction as a method of creating a multichannel optical information output system is considered. A review of several new, practically implemented methods for increasing the main functional parameters of deflectors is presented. The possibility of using the diffraction mode in the second Bragg maximum in terms of sound amplitude to extend the scanning band is shown. The two-crystal scheme of the deflector, which can significantly improve the efficiency of diffraction, expand the scanning range and create a polarization-insensitive deflector, is considered. Acousto-optic switch of fiber-optic channels was developed. The possibility of using multibeam acousto-optic diffraction to improve the energy efficiency of laser radiation by modifying its profile is established

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Section: Deflector Of Nonpolarized Laser Radiationmentioning

confidence: 99%

“…Figure29 Illustration of the principle of AO addition of the pulse lasers power. Lens L1 output rays collimated to a diameter D and sent to the AOD, the output of which is a lens L2, focusing the light into the end of the input FO.…”

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confidence: 99%

A review of physical principles and applications of acousto-optic deflectors on the basis paratellurite

Антонов¹,

Kotelnikov²

2019

PAIJ

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“…A number of optical layouts have been proposed to eliminate this disadvantage. [4][5][6][7] On the other hand, polarization analysis of images can be carried out on the basis of this phenomenon. 8 It was found that it is useful to study the polarization of reflected light along with its spectral content in problems of defining artificial objects on a natural background.…”

Section: Introductionmentioning

confidence: 99%

Acoustooptical method of spectral-polarization image analysis

Anchutkin¹,

Bel'skiĭ²,

Voloshinov

et al. 2009

J. Opt. Technol.

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This paper discusses a system of spectral and polarization image analysis, based on a tunable acoustooptic filter. A special Bragg-diffraction geometry in paratellurite is used for which the orthogonally polarized components of the light field are scattered into the opposite orders of diffraction. Simultaneous recording of the +1 and −1 orders of diffraction is used to compare the intensities of beams with different polarizations.

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“…The operation principle of the system is based on independent filtering of two orthogonal polarizations of the optical beam by a tandem of similar acoustooptic cells [5,6]. Each cell of the tandem controls one of the eigen polarizations of light in the crystal.…”

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confidence: 99%