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Atmospheric turbulent optical effect luboratory analog system based on micro-optical technology

A laboratory simulation and atmospheric turbulence technology, which is applied in the field of atmospheric turbulence optical effect laboratory simulation system, can solve the problems of complex system, limited phase surface shape accuracy, high cost, etc., and achieve compact system, low cost and good accuracy Effect

Inactive Publication Date: 2007-02-14
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

The advantages of these two methods are that there is no adverse effect on the instrument caused by heat, compact structure, independent control of time and space, and repeatability, but its disadvantages are also obvious: (1) The system is complex and expensive; 2) Due to the limitation of the drive density, the accuracy of the phase surface shape is limited, which affects the accuracy of simulated turbulence
The deficiencies of the above-mentioned methods limit people's research on atmospheric turbulence and the photoelectric system working in it to varying degrees.

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Embodiment Construction

[0028] like figure 1 As shown, it is Embodiment 1 of the present invention, the incident light comes from the front-end optical system, the aperture of the light is adjustable, the aperture is φ40mm, and the light wavelength is 0.6328μm. The shape of the random phase photo is circular, and the radius needs to be larger than the aperture of the light, here is φ100mm, and a rotating bearing is installed in the center, and the random phase is distributed outside the area where the bearing is installed. The material of the random phase photo is quartz, and the thickness is 6mm (generally determined according to the light transmission performance and mechanical strength of the material). Using the transmission device as a motor, the motor drives the rotating bearing to rotate the random phase, which can simulate the phase modulation effect of dynamic turbulent flow. There is no special requirement for the rotation speed, it is determined according to the requirements of the measur...

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Abstract

A laboratory analog system of atmosphere turbulent optical effect based on micro optical technology uses driving unit to drive random phase disc to rotate for simulating dynamic modulation effect of atmospheric turbulence to optical wave phase.

Description

technical field [0001] The invention relates to a laboratory simulation system for atmospheric turbulent optical effects, belonging to the technical fields of micro-optics, atmospheric optics, adaptive optics and the like. Background technique [0002] With the continuous advancement of atmospheric optics and space optics technology, the research on simulating the optical effects of atmospheric turbulence in the laboratory has gradually become a hot spot. When electromagnetic waves propagate in the atmosphere, turbulent disturbances cause random changes in the refractive index of the air, resulting in random fluctuations in the phase of electromagnetic waves. Phenomena such as wavefront distortion, angle of arrival fluctuation, and beam drift are the result of atmospheric turbulence. In many important military and civilian technical fields, such as astronomical imaging, optical communication, tracking guidance, remote sensing detection, and other technical fields involving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06G01M9/00
Inventor 高洪涛杜春雷邓启凌赵泽宇董小春潘丽张祥张雨东
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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