Journal ArticleDOI
Effects of mode conversion in acoustooptical modulation
TLDR
In this paper, the effects of Gaussian laser beam conversion in an optical communications system are described with emphasis placed on the actual signal received by a distant antenna rather than on the total power scattered.Abstract:
The conversion of a Gaussian laser beam into higher order optical beam modes through acoustooptical modulation is treated. In particular the effects of this conversion in an optical communications system are described with emphasis placed on the actual signal received by a distant antenna rather than on the total power scattered. For the special case of pulse amplitude modulation, which is considered in detail, the received optical signal displays phase modulation as well as the impressed amplitude modulation. The relative importance of the two effects depends strongly on the location of the receiving aperture in the far field of the transmitted beam. An experiment in which 10.6-μ, laser light is scattered by a germanium acoustooptical modulator is described. The results of the experiment compare well with the predictions of the above analysis.read more
Citations
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Journal ArticleDOI
Application of acousto-optic interaction for holographic conversion of light fields
TL;DR: In this article, a survey of acousto-optic conversion of optical images is presented, with particular attention paid to the visualization of phase objects and registration of optical wavefronts.
Journal ArticleDOI
Temporal response of the acoustooptic modulator in the high scattering efficiency regime.
TL;DR: An efficient and rigorous algorithm is proposed for analyzing the temporal response of the Bragg acoustooptic modulator in the high scattering efficiency regime and successfully predicts pulse profile asymmetries that have been observed experimentally and cannot be predicted by the usual Green's function (small signal) models of the acoustOoptic coupling.
Journal ArticleDOI
Temporal response of the acoustooptic modulator: geometrical optics model in the low scattering efficiency limit
TL;DR: A phenomenological model of the acoustooptic modulator is proposed, which shows that the temporal response of the deflected light power is a quadratic invariant function of the video signal amplitude.
Journal ArticleDOI
Optical heterodyne detection of microwave signals from acoustooptical interactions
J.T. Flynn,R. Kaul,T.M. Reeder +2 more
TL;DR: In this article, the acoustooptical Bragg interaction in sapphire was used to shift the frequency of an argon laser beam at 514.5 nm.
Proceedings ArticleDOI
Acousto-Optic Devices For Use In Radio Frequency Target Simulators
TL;DR: In this paper, the authors used an acousto-optic component to simulate moving targets to test fuzing altimeters and active missile control systems using Doppler simulations.
References
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Journal ArticleDOI
Laser beams and resonators
H. Kogelnik,Tingye Li +1 more
TL;DR: This paper is a review of the theory of laser beams and resonators and emphasis is placed on formulations and derivations which lead to basic understanding and on results which bear practical significance.
Journal ArticleDOI
A review of acoustooptical deflection and modulation devices.
TL;DR: It is shown that the product of the fraction of the light that may be scattered and the bandwidth for Bragg scattering equals a materials constant times the acoustic power, so the required modulation power for any level of device performance is easily determined.
Journal ArticleDOI
Acoustooptical pulse modulators
TL;DR: In this paper, a theoretical analysis of acoustooptical pulse modulators is carried out that yield the intensity and rise time of the scattered light and the optimum relationship between the dimensions of the optical and acoustic beam is given.
Journal ArticleDOI
Acousto‐Optic Properties of Crystalline Germanium
R. L. Abrams,D. A. Pinnow +1 more
TL;DR: The acousto-optic properties of crystalline germanium have been measured, including a complete and accurate characterization of the photoelastic tensor as discussed by the authors, and it has been shown that it has superior optical and mechanical properties to tellurium for many infrared modulation and deflection applications.
Journal ArticleDOI
A comparison of acoustooptic and electrooptic modulators at 10.6 microns
D.M. Henderson,R.L. Abrams +1 more
TL;DR: In this article, a comparison between acoustooptic and electrooptic modulators at 10.6 μ for AM and FM systems with emphasis on drive power requirements was made.