A wide-spectrum acousto-optic modulation spatial light blur stripping system and method

An acousto-optic modulation and acousto-optic modulator technology, which is applied in the field of communication, can solve problems such as the difficulty of telephoto space separation and the lack of wide beam space separation methods, and achieve the effects of reducing dispersion, expanding reflection angles, and improving practicability

Active Publication Date: 2021-08-10
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
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Problems solved by technology

In the above beam blur suppression methods, physical channel isolation is used more often, but for wide-spectrum sunlight, it is difficult to use telephoto space separation
[0020] (2) In terms of patents, there are 41 patents on acousto-optic modulation, and there is no wide-beam spatial separation method

Method used

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  • A wide-spectrum acousto-optic modulation spatial light blur stripping system and method
  • A wide-spectrum acousto-optic modulation spatial light blur stripping system and method
  • A wide-spectrum acousto-optic modulation spatial light blur stripping system and method

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Embodiment Construction

[0038] image 3 It is a schematic diagram of the principle of the wide-spectrum acousto-optic modulation spatial light blur removal system provided by the embodiment of the present invention. Such as image 3 As shown, the wide-spectrum acousto-optic modulation spatial light blur stripping system and method is characterized in that it includes: a wide-spectrum light source 1, an acousto-optic modulator 2, an acousto-optic modulation drive 3, an ellipsoid mirror 4, and a spatial aperture stop 5 , blackbody absorption cavity 6; wherein,

[0039] The light emitted by the wide-spectrum light source 1 enters the acousto-optic modulator 2 at the Bragg diffraction angle. The 0-order or 1-order diffracted beam is controlled by the acousto-optic modulation drive 3. The 0-order or 1-order diffracted beam is reflected to the ellipsoidal mirror 4. The 0-order The diffracted beam is reflected and reaches the aperture stop 5 , and the first-order diffracted beam reaches the black body abs...

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Abstract

The present invention is a wide-spectrum acousto-optic modulation spatial light blur stripping system and method. The system includes: a wide-spectrum light source, an acousto-optic modulator, an acousto-optic modulation driver, an ellipsoid mirror, a spatial aperture stop, and a black body absorption cavity; The light emitted by the spectrum light source is incident on the acousto-optic modulator at the Bragg diffraction angle for modulation, and the acousto-optic modulation drives and controls the acousto-optic modulator to emit a first-order or first-order diffracted beam; the first-order or first-order diffracted beam emitted from the acousto-optic modulator passes through the Reflected by the mirror, the first-order diffracted beam reflects and reaches the aperture stop, and the first-order diffracted beam reaches the black body absorption cavity and is absorbed by the black body absorption cavity. The invention uses an optical ellipsoid reflector device to realize beam blur suppression method, and strips and separates the diffracted beam and the transmitted beam output by the acousto-optic modulator.

Description

technical field [0001] The invention belongs to the communication field, and relates to an acousto-optic modulation spatial light blur stripping system. Background technique [0002] The principle of acousto-optic modulation is that the ultrasonic wave acts in the medium, and the medium undergoes elastic changes of the longitudinal wave of the ultrasonic wave to produce different changes in the refractive index, while the light beam penetrating into the medium in the other direction changes due to the change in the refractive index, and the light intensity of the light beam also changes. Will change accordingly. The acousto-optic modulation information is to modulate and control the power of the sound wave and affect the additional phase of the refractive index, so that the information of the modulated sound wave power can be mapped to whether the output light is diffracted or not. [0003] The sound wave in the medium is a plane longitudinal wave. Let the wavelength be Λ a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/14G02B27/00
CPCG02B27/0012G02B27/14
Inventor 李立郭海超
Owner XIAN INSTITUE OF SPACE RADIO TECH
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