Paper 12995-22
Paper 12995-22
Thermally expanded core fiber: a novel platform for meta-fibers
9 April 2024 • 11:50 - 12:10 CEST | Londres 2/Salon 7, Niveau/Level 0
Abstract
Meta-Fibers, which incorporate 3D-printed Metalens into optical fiber facets, are versatile technology with applications in imaging, optical trapping, and electromagnetic wave manipulation. Single-Mode Fiber (SMF) stands out for its defined output, but its limited mode field diameter poses a challenge, often requiring fusion splicing with Multi-Mode Fiber (MMF) or a 3D-printed structure to expand SMF's usable cross-section. However, these methods are complex and may damage the Meta-Fiber. This study introduces an alternative, replacing SMF with Thermally Expanded Core (TEC) fiber, featuring a significantly larger mode field diameter. This approach enables optical trapping and imaging via 3D laser-printed ultra-high numerical aperture metalens into TEC fibers, functioning effectively in diverse environments. The findings expand Meta-Fiber applications, providing an efficient, robust, and scalable solution for optical wavefront manipulation, highlighting the potential of TEC fibers in optics and photonics technology.
Presenter
Mohammadhossein Khosravi
Leibniz-Institut für Photonische Technologien e.V. (Germany)
At present, I am a second-year doctoral candidate at Friedrich-Schiller University (FSU) of Jena and the Leibniz Institute of Photonic Technology, Jena, Germany. My research is conducted under the supervision of Prof. Markus Schmidt within the Fiber Photonics research department at Leibniz-IPHT. In the context of my PhD project, we investigate the focusing capabilities of 3D laser-printed meta-structures on optical fibers. Our approach utilizes two-photon polymerization to create sub-micron structures on the facet of optical fibers, enabling precise manipulation of electromagnetic waves. This innovative configuration, known as Meta-Fibers, offers an integrable, flexible, cost-effective, and bio- and fiber-circuitry-compatible solution. To date, we have successfully designed and demonstrated Meta-Fibers with ultra-high numerical apertures, which have found remarkable applications in the fields of imaging and optical trapping and have been published in prestigious journals.