Optical dielectric metasurfaces have produced a breakthrough in the field of high transmission wavefront engineering. However, its integration with the optical fiber platform is relatively new and has huge potential applications in imaging, sensing, and communication. In this work, we discuss the design and simulation of an all-dielectric metasurface that has been mounted on a conventional single-mode fiber (SMF-28) facet. It has been shown that it is possible to steer the optical beam in a two-dimensional space through appropriate design of the requisite metasurface, supported by both theoretical and simulation results. Numerical simulations reveal that the designed fiber-metatip can work efficiently over the standard telecom C-band with a bandwidth of 60 nm. In addition, the capability of meta-lensing with a focal length of 10 μm, FWHM of ∼1.439 μm and focusing efficiency of 82.2% has been demonstrated. The proposed Fiber meta-tip outperforms in compare to commercially available lensed fibers.

光介电超表面在高透射波前工程领域取得了突破。然而，它与光纤平台的集成相对较新，在成像、传感和通信方面具有巨大的潜在应用。在这项工作中，我们讨论了安装在传统单模光纤 (SMF-28) 面上的全介电超表面的设计和模拟。已经表明，通过必要的超表面的适当设计，可以在二维空间中控制光束，理论和模拟结果都支持。数值模拟表明，设计的光纤元尖可以在带宽为 60 nm 的标准电信 C 波段上有效工作。此外，元能力已经证明焦距为 10 μm、半高宽为 ~1.439 μm 且聚焦效率为 82.2% 的透镜。与市售的透镜光纤相比，所提出的光纤元尖端的性能更胜一筹。