Riassunto analitico
Since their inception, Hollow-Core Photonic Crystal Fiber (HCPCF) has experienced a huge progress both in understanding the physics of the guidance mechanisms and in developing a new landscape in research and technology. However, one of the limiting factors for the transmission in the short wavelength range, is the scattering process, which arises from the roughness of the core surfaces. Here, it is reported an exhaustive study of the T-roughness effect on the confinement loss of Inhibited Coupling (IC) HCPCFs, which aims to cover the gap in Fundamental Mode (FM) Confinement Loss (CL) between numerical simulations and experimental measurements. An analytical model is presented and numerically tested by comparing the outcomes on different types of fiber. This approach is focused on the poorly investigated transverse texture, shaped by randomly independent perturbations along the boundaries of the fiber tubes. The results estimate the roughness loss impact and reveal a new approach as a promising path for the study of optical fiber performances.
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Abstract
Since their inception, Hollow-Core Photonic Crystal Fiber (HCPCF) has experienced a huge progress both in understanding the physics of the guidance mechanisms and in developing a new landscape in research and technology. However, one of the limiting factors for the transmission in the short wavelength range, is the scattering process, which arises from the roughness of the core surfaces. Here, it is reported an exhaustive study of the T-roughness effect on the confinement loss of Inhibited Coupling (IC) HCPCFs, which aims to cover the gap in Fundamental Mode (FM) Confinement Loss (CL) between numerical simulations and experimental measurements. An analytical model is presented and numerically tested by comparing the outcomes on different types of fiber. This approach is focused on the poorly investigated transverse texture, shaped by randomly independent perturbations along the boundaries of the fiber tubes. The results estimate the roughness loss impact and reveal a new approach as a promising path for the study of optical fiber performances.
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