Small atmosphere laser communication device and method

A technology of atmospheric laser communication and communication devices, which is applied in the field of miniaturized atmospheric laser communication devices, can solve problems such as alignment difficulties, and achieve the effects of long communication distance, fast alignment, and large emission and reception viewing angles

Inactive Publication Date: 2015-05-13
西安应用光学研究所
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Problems solved by technology

[0005] The present invention aims at the problem of difficult alignment in atmospheric laser communication, and at the same time considers contro

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  • Small atmosphere laser communication device and method
  • Small atmosphere laser communication device and method

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Embodiment Construction

[0023] Describe the present invention below in conjunction with specific embodiment:

[0024] like figure 1 As shown, the miniaturized atmospheric laser communication device in this embodiment is composed of a miniaturized atmospheric laser communication device 7 and a sight 8, and the miniaturized atmospheric laser communication device is composed of an emission optical window 1, an emission beam splitting prism 2, a semiconductor laser 3, a Nd : YAG laser 4, receiving optical window 9, receiving beam splitting prism 10, PIN photodiode 5 and four-quadrant spot tracker 6. Semiconductor laser 3, Nd:YAG laser 4, collimator 8 are on the same optical axis, and the emitting laser light of semiconductor laser 3 and Nd:YAG laser 4 is emitted from emitting optical window 1 after passing through emitting beam splitting prism 2; The laser light is received by the PIN photodiode 5 and the four-quadrant spot tracker 6 after passing through the receiving dichroic prism 10 .

[0025] The ...

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Abstract

The invention discloses a small atmosphere laser communication device and method. The device comprises a small atmosphere laser communication machine and a sighting telescope. The small atmosphere laser communication machine comprises an optical window, a beam splitting prism, a semiconductor laser, an Nd: YAG laser, a PIN photodiode and a light spot tracker. Besides traditional laser communication, a beam aligning unit is added, and accordingly, by the aid of visual reflection of detection beams emitted by the Nd: YAG laser on a four-quadrant diagram of the four-quadrant light spot tracker, the light spot center is adjusted to the four-quadrant center rapidly through a manual or servo system, and rapid alignment of the communication transmission end and the communication receiving end is achieved. The device and the method have the advantages of being small in size, low in weight, stable in communication, fast in alignment speed and the like.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a miniaturized atmospheric laser communication device and a communication method, which have a beam alignment function. Background technique [0002] Atmospheric laser communication equipment has the advantages of no electromagnetic interference, flexible networking, convenient installation and maintenance, high communication reliability, good confidentiality, and high cost performance. Atmospheric laser communication technology has become a popular technology in today's information technology. Its role and status It has been compared with optical fiber communication and microwave communication, so it has strong military application value. In the military, wireless laser communication is mainly used for emergency rescue in the environment where microwave communication is interfered and optical fiber communication fails, and emergency confidential communication in battlefiel...

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Application Information

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IPC IPC(8): H04B10/11
Inventor 陈胜石高玮张晓辉侯风乾陈文建杨华梅张若凡穆让修毕博瑞薛常佳
Owner 西安应用光学研究所
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