Enhanced Mode-coupling: A Multi-mode Hollow-core Anti-resonant Fiber Design

An enhanced inhibited-coupling hollow-core anti-resonant fiber (HC-ARF) has been proposed for low-loss multi-mode guidance. The state-of-the-art extensive finite-element modeling confirms that the fiber can support >20 spatial modes with propagation loss <100 dB/km with exceptional optical mode-field profiles. © 2023 The Author(s)