Abstract

A new, to the best of our knowledge, hollow-core optical fiber based on a tube lattice geometry is proposed. The fiber cross section is formed by eight tubes with five different thicknesses, and the guidance mechanism is based on the inhibited coupling phenomenon. As such, its transmittance spectrum displays low-loss windows intercalated with high-loss regions, each of the latter related to specific core-cladding modal couplings. The spectral behavior of the straight and bent waveguide is numerically analyzed. Simulations on different curvature radii and directions (angles) show the core mode displacement toward the outer side of the curvature and its impact on the spectral shift of the high-loss wavelengths. The different response of each tube resonance is investigated and discussed. The proposed structure identifies a new and promising path for the development of directional curvature sensors.

© 2021 Optical Society of America

Four-ray interference model for complete characterization of tubular anti-resonant hollow-core fibers

Yifan Xiong, Shixian She, Yizhi Sun, Yingying Wang, Maochun Li, Kun Zhao, Miao Yan, and Wei Ding
Opt. Express 30(26) 48061-48074 (2022)

Low-loss single-mode modified conjoined tube hollow-core fiber

Kumary Sumi Rani Shaha and Abdul Khaleque
Appl. Opt. 60(21) 6243-6250 (2021)

Ultrawide bandwidth dual sakura hollow-core antiresonant fiber polarization beam splitter

Haoqiang Jia, Xin Wang, Trevor M. Benson, Shuai Gu, Shuqin Lou, and Xinzhi Sheng
J. Opt. Soc. Am. B 38(11) 3395-3402 (2021)

Temperature-compensated fiber directional-bend sensor based on a sandwiched MMF–PMPCF structure

Dingyi Feng, Biqiang Jiang, Yajun Jiang, and Jianlin Zhao
Appl. Opt. 60(2) 433-437 (2021)

Numerical modeling of a hybrid hollow-core fiber for enhanced mid-infrared guidance

Juliano G. Hayashi, Seyed M. A. Mousavi, Andrea Ventura, and Francesco Poletti
Opt. Express 29(11) 17042-17052 (2021)