High-isolation laser load wireless docking dynamic test system

A technology of wireless docking and dynamic testing, applied in transmission systems, electromagnetic wave transmission systems, advanced technologies, etc., can solve problems such as high transmission power, high reception sensitivity, and stray light generation, so as to improve system isolation and reduce system return light , Improve the effect of isolation

Pending Publication Date: 2022-05-31
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

On the other hand, due to the high transmission power and high receiving sensitivity of the space laser communication terminal, the high-power output light of its own laser is easy to generate stray light in the simulated environment of the ground laboratory, which will interfere with its own reception.

Method used

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  • High-isolation laser load wireless docking dynamic test system

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Embodiment Construction

[0022] The present invention is further limited below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention should not be limited thereby.

[0023] see figure 1 , figure 1 It is a device schematic diagram of the high-isolation laser load wireless docking dynamic test system of the present invention, including a space light part and a fiber optic part.

[0024] The spatial light part is mainly composed of the collimator 1. Except for the primary mirror, the clamping structures of the secondary mirror and the turning mirror of the collimator 1 are all processed to eliminate stray light. The light beam reflected by the turning mirror is then reflected to the BS prism 3 by the oscillating mirror 2, and the front end of the lens on the oscillating mirror 2 is equipped with a diaphragm 7 with a slightly larger aperture than the oscillating mirror, which can absorb stray light. The BS prism 3 divides the light beam into two be...

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Abstract

The invention provides a high-isolation laser load wireless docking dynamic test system, and belongs to the technical field of space laser communication. According to the invention, stray light elimination processing is carried out on a plurality of key parts of the collimator in the ground measurement equipment, so that light return of the ground measurement equipment to the test terminal is reduced. Meanwhile, according to the testing system, a light beam of a communication wave band is separated from a light beam of a beacon wave band, the beacon light beam adopts an APD triggering mode, certain directional disturbance is applied to the communication light beam and the beacon light beam, and therefore the dynamic wireless docking testing system is formed.

Description

technical field [0001] The invention relates to space laser communication, in particular to a high-isolation laser load wireless docking dynamic test system. It is mainly used to effectively simulate the tracking and communication system performance of the double-ended link of the space laser payload on the ground. Background technique [0002] The wireless docking system currently applied to space laser payloads cannot simulate the space environment background without stray light, and cannot effectively evaluate the actual performance of space laser payloads. Therefore, a high-isolation laser load wireless docking dynamic test system that can be applied to ground testing has high practical value. This system is mainly used for ground testing satellite laser communication terminal system, a satellite laser communication terminal usually consists of laser communication system and optical tracking system. The communication system is used for information transmission between ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/071
CPCH04B10/071Y02D30/70
Inventor 罗辉明李佳蔚吴潇杰朱韧孙建锋侯霞
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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