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All-fiber active tractor beam generator and its application
Journal of Lightwave Technology ( IF 4.7 ) Pub Date : 2020-03-15 , DOI: 10.1109/jlt.2019.2953335
Xiaoyun Tang , Yu Zhang , Yaxun Zhang , Zhihai Liu , Xinghua Yang , Jianzhong Zhang , Jun Yang , Libo Yuan

We propose and demonstrate an all-fiber probe to generate an active tractor beam by changing the gradients of optical intensity distributions. We grind the tip of a seven-core fiber (SCF) into a truncated hexagonal pyramid shape to integrate three equivalent two-core fiber optical tweezers in an SCF. Three optical tweezers produce three trapping locations along the fiber main axis. By adjusting and controlling the incident laser power in each core, we may perform multiple functions, including microparticles optical trapping, long-distance attraction, bidirectional transportation, and axial-direction position controllable adjustment. The proposed all-fiber active tractor beam generator is convenient to integrate and low cost. The all-fiber probe has the compatibility of optical tweezers and optical tractor beams. The increased effective range of optical pull broadens the scope of feasible optical trapping and will pave the way towards more efficient light-powered miniature machines, tools, and applications.

中文翻译:

全光纤主动牵引光束发生器及其应用

我们提出并演示了一种全光纤探头,通过改变光强度分布的梯度来产生有源牵引光束。我们将七芯光纤 (SCF) 的尖端研磨成截头六棱锥形状,以在 SCF 中集成三个等效的两芯光纤光镊。三个光镊沿光纤主轴产生三个捕获位置。通过调整和控制每个核心的入射激光功率,我们可以实现多种功能,包括微粒光捕获、长距离吸引、双向传输和轴向位置可控调整。所提出的全光纤有源牵引光束发生器易于集成且成本低。全光纤探头具有光镊和光学牵引光束的兼容性。
更新日期:2020-03-15
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