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Laser load for indoor test of laser communication terminal

A technology of laser communication and laser loading, applied in optics, optical components, installation, etc., can solve problems such as damage to optical equipment, reduce power density and energy density, prolong working life, and avoid the effects of strong lethality

Active Publication Date: 2012-11-28
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When system integration tests are carried out indoors, the laser power output on the order of several watts will cause serious damage to human eyes and optical equipment

Method used

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  • Laser load for indoor test of laser communication terminal
  • Laser load for indoor test of laser communication terminal

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Embodiment Construction

[0021] Such as figure 1 As shown, the present invention provides a laser load for indoor testing of laser communication terminals, including a base 1, a metal spherical cavity 2, a conical reflector 3, a rotating reflector 4, a connecting rod 5, a DC motor 6, a connecting rod Plug-in 7, shielded cable 8 and heat sink 9;

[0022] The base 1 and the metal spherical cavity 2 are welded together. The outer surface of the metal spherical cavity 2 is equipped with a plurality of cooling fins 9 and the surface of the metal spherical cavity 2 has a round hole for receiving laser light. The conical reflector 3 is assembled on the metal by bolts. The round hole on the surface of the spherical cavity 2 is used to increase the receiving aperture for receiving laser light;

[0023] The rotating mirror 4 and the connecting rod 5 are fixed together by screws and the angle between the rotating mirror 4 and the connecting rod 5 is 45°, the rotating mirror 4 is circular and the connection betw...

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Abstract

A laser load for indoor test of a laser communication terminal comprises a base, a metal spherical cavity, a conical reflector, a rotating reflector, a connecting rod, a direct-current motor, a connector, a radiating flange and the like, wherein cast iron is used as the substrate material of the metal spherical cavity and the internal surface of the metal spherical cavity is subjected to sandblasting and spray-painting treatment previously; the conical reflector has an appropriate field angle; the direct-current motor controls a rotatable plane reflector to rotate at a rate of 1 degree per second; and the surfaces of the reflectors are all coated with alumium films and protective layers. The laser load can be applied to absorbing laser in the indoor test of the laser communication terminal, and further is high in absorption gain, small in structure volume and long in service life.

Description

technical field [0001] The invention relates to a laser load used for high-power laser absorption, in particular to a laser load used for indoor testing of laser communication terminals. Background technique [0002] A laser load is a device that cuts off the absorption of high-power lasers by converting laser power into thermal energy. Since the distance of the laser relay link is tens of thousands of kilometers (up to 45,000km), and the capture sensitivity is limited (about -75dB), the space transmission attenuation is serious, and the relay star laser communication terminal that initiates the capture is required to have a sufficiently high exit pupil Power (above 5W). When the system integration test is carried out indoors, the laser power output on the order of several watts will cause serious damage to human eyes and optical equipment. Therefore, an appropriate laser load must be used in the test to absorb the strong laser power necessary for the test to be carried ou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/198H04B10/08
Inventor 张文睿汪波幺周石郭海超陈二虎
Owner XIAN INSTITUE OF SPACE RADIO TECH