1. Theoretical modeling on the laser induced effect of liquid crystal optical phased beam steering
- Author
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Xiaoxian He, Qinggui Tan, Shuanghong Wu, Ziqiang Huang, Liang Wu, Jiyang Shang, Xiangru Wang, and Man Li
- Subjects
Materials science ,Beam steering ,Physics::Optics ,02 engineering and technology ,01 natural sciences ,Beam parameter product ,law.invention ,010309 optics ,020210 optoelectronics & photonics ,Optics ,law ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Physics::Atomic Physics ,Laser power scaling ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Distributed feedback laser ,Phased-array optics ,business.industry ,Laser ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,Physics::Accelerator Physics ,Optoelectronics ,Laser beam quality ,business ,Laser Doppler vibrometer - Abstract
Non-mechanical laser beam steering has been reported previously in liquid crystal array devices. To be one of the most promising candidates to be practical non-mechanical laser deflector, its laser induced effect still has few theoretical model. In this paper, we propose a theoretical model to analyze this laser induced effect of LC-OPA to evaluate the deterioration on phased beam steering. The model has three parts: laser induced thermal distribution; temperature dependence of material parameters and beam steering deterioration. After these three steps, the far field of laser beam is obtained to demonstrate the steering performance with the respect to the incident laser beam power and beam waist.
- Published
- 2017