首页|基于光纤端面集成的液晶光束整形器件

基于光纤端面集成的液晶光束整形器件

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光纤集成器件因其尺寸小、功能高度集成化等优点,近年来受到越来越多的关注.当前光纤集成器件通常由介质型或金属型微结构组成,其制备加工通常依赖于高精度的微纳加工技术,面临着成本高和工艺复杂等挑战.另外,静态、固定几何结构的光纤光学器件功能不可调,也在极大程度上限制了其应用范围.本文设计并验证了一种基于光纤端面集成的液晶光束整形器件.通过对单模光纤端面加工平行锚定和垂直锚定的液晶聚合物液滴,获得了可见光波段的光束整形器件.基于Q-张量模型和Rayleigh-Sommerfeld衍射理论,实现了具有特殊液晶指向矢排布的液晶聚合物液滴的模拟仿真.通过实验验证了不同锚定条件下液晶聚合物液滴的光学性能,实验结果与仿真结果基本吻合,证明了该液晶器件的光束整形能力.这种液晶器件为光纤光学器件的微型化与集成化提供了一种成本较低、高效便捷的全新途径.
Liquid crystal beam shaping device based on fiber end-facet
Optical fiber integrated devices have attracted increasing attention due to its advantages of small size,and high-degree integration of diverse functionalities.Traditional fiber integrated devices are usually composed of dielectric or metallic microstructures,which rely on expensive and complex lithography process.Moreover,the functionality of fiber optics with static and fixed geometry is unadjustable,which greatly limits their applications.In this article,we design and demonstrate an optical fiber end-facet integrated liquid crystal(LC)photonic devices for beam shaping.The LC polymer droplets with planar and homeotropic anchoring on the single-mode fiber end-facet were prepared to realize the beam shaping devices in the visible.These two kind of LC polymer droplets with special director configurations were simulated using Q-tensor model and Rayleigh-Sommerfeld diffraction theory.The optical properties of the LC polymer droplets under different anchoring conditions were experimentally verified.The experimental results match the simulation results,thus proving the beam shaping ability of the LC devices.This study provides a new approach to realize compact and integrated optical fiber optics with lower cost and high efficiency.

beam shapingoptical fiber end-facetliquid crystal polymer dropletsliquid crystal directorintegrated device

张永瑛、李佩芸、郭政昊、袁冬、叶华朋、周国富

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华南师范大学华南先进光电子研究院,广东广州 510640

光束整形 光纤端面 液晶聚合物液滴 液晶指向矢 集成化器件

国家自然科学基金广州市科技计划广州市科技计划广东省普通高校重点领域专项广东省光信息材料与技术重点实验室

618050872021020206042022010103512021ZDZX10482023B1212060065

2024

10.37188/CJLCD.2024-0050

液晶与显示
中科院长春光学精密机械与物理研究所 中国光学光电子行业协会液晶分会 中国物理学会液晶分会

液晶与显示

CSTPCD北大核心
影响因子：0.964
ISSN：1007-2780
年,卷(期)：2024.39(5)