30 November 2016 Steering performance of oblique arriving beam backward propagating through one-dimensional liquid crystal optical phased array
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Abstract
Liquid crystal optical phased array (LC-OPA) has been reported to be one of the promising methods to realize nonmechanical laser beam steering in free-space laser communication. The nonmechanical beam steering mechanism of LC-OPA in a free-space laser communication process is demonstrated. To analyze the steering performance of LC-OPA for a beam arriving from arbitrary directions, a theoretical model based on two-dimensional liquid crystal orient model and backward propagation method is proposed. In addition the phase characteristics are discussed both in normal and oblique incident cases, and a linear relationship between angle-of-arrival and detected incident angle is also derived. All of the theoretical results are verified by the following experiments with a good agreement.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Liang Wu, Xiangru Wang, Caidong Xiong, Ziqiang Huang, Qinggui Tan, Man Li, "Steering performance of oblique arriving beam backward propagating through one-dimensional liquid crystal optical phased array," Optical Engineering 55(11), 116115 (30 November 2016). https://doi.org/10.1117/1.OE.55.11.116115 . Submission:
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