Jul. 2017

Article Contents

Chinese Optics> 2017> 10(4): 507-513.

ZHANG Lu-wei, WANG Wei-bing, WANG Rui, WANG Ting-feng, GUO Jin. Analysis of beam steering control precision for Risley prisms based on forward solution[J]. Chinese Optics, 2017, 10(4): 507-513. doi: 10.3788/CO.20171004.0507

Citation:

ZHANG Lu-wei, WANG Wei-bing, WANG Rui, WANG Ting-feng, GUO Jin. Analysis of beam steering control precision for Risley prisms based on forward solution[J].Chinese Optics, 2017, 10(4): 507-513.doi:10.3788/CO.20171004.0507

Citation:

ZHANG Lu-wei, WANG Wei-bing, WANG Rui, WANG Ting-feng, GUO Jin. Analysis of beam steering control precision for Risley prisms based on forward solution[J].Chinese Optics, 2017, 10(4): 507-513.doi:10.3788/CO.20171004.0507

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Analysis of beam steering control precision for Risley prisms based on forward solution

doi:10.3788/CO.20171004.0507

State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Funds:

National Defense Science and Technology Innovation Fund of Chinese Academy of SciencesCXJJ-17-M132

More Information

Corresponding author:ZHANG Lu-wei, E-mail:zhanglw@ciomp.ac.cn
Received Date:12 May 2017
Rev Recd Date:09 Jun 2017
Publish Date:01 Aug 2017

Abstract

Abstract

In order to obtain the basis for index design of beam steering control precision and performance improvement for Risley prism system, the nonlinear relationship between Risley prism beam steering control precision and shaft angle measurement precision is investigated. First, based on the first-order paraxial approximation vector synthesis model, the analytical expression of the direction of the outgoing beam is derived from the double prisms position by the forward solution method. And then, based on the servocontrol experience of single degree of freedom shaft, the nonlinear analytical expression between the beam steering control precision and the shaft angle measurement precision is deduced by the Taylor series expansion method, and thus the dividing line criterion is obtained. Finally, the small deflection angle system and the large deflection angle system are simulated and analyzed respectively, and the change of the beam steering control precision over the whole field of view is obtained. Results show that the nonlinear analytical expression derived in this paper represents the relationship among the factors that affect the control precision of the system, which provides the basis for the design and optimization of the Risley prism beam steering system.
- beam steering,
- Risley prism,
- control precision,
- forward solution,
- dividing line

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References (25)

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