2020/12/17 by Md. Selim Habib, Habib, Md. Selim, Christos Markos +3
Engineering · #Advanced Fiber Optic Sensors #FOS: Physical sciences #Optical Network Technologies #Optics (physics.optics) #Photonic Crystal and Fiber Optics
paper · pdf · doi:10.48550/arxiv.2012.09914
openalex publication_date 2020/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Understanding the impact of the cladding tube structure on the overall\nguiding performance is crucial for designing single-mode, wide-band, and ultra\nlow-loss nested hollow-core anti-resonant fiber (HC-ARF). Here we thoroughly\ninvestigate on how the propagation loss is affected by the nested elements when\ntheir geometry is realistic (i.e., non-ideal). Interestingly, it was found that\nthe size rather than the shape of the nested elements, have a dominant role in\nthe final loss performance of the HC-ARFs. We identify a unique 'V-shape'\npattern for suppression of higher-order modes loss by optimizing free design\nparameters of HC-ARF. We find that a 5-tube nested HC-ARF has wider\ntransmission window and better single-mode operation than 6-tube HC-ARF. We\nshow that the propagation loss can be significantly improved by using\nanisotropic nested anti-resonant tubes elongated in the radial direction. Our\nsimulations indicate that with this novel fiber design, a propagation loss as\nlow as 0.11 dB/km at 1.55 \μm can be achieved. Our results provide design\ninsights towards fully exploiting single-mode, wide-band, and ultra low-loss\nHC-ARF. In addition, the extraordinary optical properties of the proposed fiber\ncan be beneficial for several applications such as future optical communication\nsystem, high energy light transport, extreme non-nonlinear optics and beyond.\n