Optical Skyrmions from Metafibers

Optical skyrmions are an emerging class of structured light withsophisticated particle-like topologies with great potential for revolutionizingmodern informatics. However, the current generation of optical skyrmionsinvolves complex or bulky systems, hindering their development of practicalapplications. Here, exploiting the emergent "lab-on-fiber" technology, wedemonstrate the design of a metafiber-integrated photonic skyrmion generator.We not only successfully generated high-quality optical skyrmions frommetafibers, but also experimentally verified their remarkable properties, suchas regulability and topological stability with deep-subwavelength featuresbeyond the diffraction limits. Our flexible and fiber-integrated opticalskyrmions platform paves the avenue for future applications oftopologically-enhanced remote super-resolution microscopy and super-robustinformation transfer.