Effect of the second ring of antiresonant tubes in negative-curvature fibers

• Main Authors: Wang, Yuxi, Md Imran Hasan, Muhammad Rosdi Abu Hassan, Chang, Wonkeun
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Antiresonant; Optics
• Online Access: https://hdl.handle.net/10356/157575
• Institution: Nanyang Technological University

We present a numerical investigation on the effect of introducing the second ring of antiresonant tubes on the guiding properties of the negative-curvature fiber. We determine the range of structural parameters for achieving the optimum light guidance in the double-ring geometry. Our study shows that the double-ring negative-curvature fiber can improve the confinement loss by up to four orders of magnitude with considerably better bending and single-mode performance when compared to its single-ring counterpart.