Liquid crystal laser steering gear

A diverter, laser technology, applied in instruments, optics, nonlinear optics, etc., can solve the problems of high driving voltage, large volume and weight, short stroke, etc., and achieve the effect of reducing wavefront distortion and high-precision tracking
CN109343291AInactive Publication Date: 2019-02-15UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONIC SCI & TECH OF CHINA
Publication Date
2019-02-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a liquid crystal laser steering gear. The liquid crystal laser steering gear comprises multiple structure layers distributed up and down. Each structure layer comprises a firstsubstrate, a liquid crystal molecular layer and a second substrate. Each first substrate sequentially comprises first substrate glass, a first ITO electrode layer and a first orientation layer from top to bottom. Each second substrate sequentially comprises a second orientation layer, a second ITO electrode layer and second substrate glass from top to bottom. The liquid crystal molecular layers are located between the first orientation layers and the second orientation layers, and multiple spacers with the same height are sprayed into the liquid crystal molecular layers for supporting. The edges of the first substrates and the edges of the second substrates are sealed and packaged through frame glue. The deflection angle of emergent light is adjusted by changing the width of each region,the thickness of a liquid crystal box and voltages, light beams are tracked at high precision, the liquid crystal laser steering gear has the advantages of high precision and rapid response, and meanwhile wavefront distortion can be reduced.
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Description

technical field

[0001] The invention belongs to the technical field of liquid crystal optoelectronic devices, and specifically discloses a liquid crystal laser diverter, which can control the direction of laser light. It is used in space laser communication and space laser radar to track targets with high precision. Background technique

[0002] Space laser communication is a communication method that uses laser as a carrier to transmit information through transmission channels such as free space and the atmosphere. It has a series of advantages such as large information capacity, high transmission rate, strong electronic countermeasures, small system size, light weight, low power consumption, and relatively high cost performance. It is recognized as one of the best ways for future aerospace communications and satellite communications. Space beam acquisition, alignment, tracking (APT—Acquisition, Pointing and Tracking) technology is an important key technology in space lase...

Claims

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