Optical and mechanical properties of hollow-core fibers with cobweb cladding structure

• 作 者: 陈明阳 于荣金 田振国 白象忠
• 机 构: School of Information Science and Engineering,School of Information Science and Engineering,School o
• 出 处: Chinese Optics Letters
• 发表日期: 2006年02期
• 关键词: hollow cladding supporting strips possibility alternating Bragg leakage cylindri

This paper explores the possibility of realizing a hollow-core optical fiber, whose cladding is composed of cylindrical alternating layers of air and high-index material with supporting structure. The optical properties and the design criteria of the proposed fiber are evaluated by the compact two-dimensional (2D) finite-difference time-domain (FDTD) method. In particular, the influence of the number and width of supporting strips on the leakage loss of the fiber is investigated. Furthermore, the mechanical performances of the fiber are estimated by finite-element method, confirming that hollow-core fibers with a reasonable size and number of supporting strips are reliable.

This paper explores the possibility of realizing a hollow-core optical fiber, whose cladding is composed of cylindrical alternating layers of air and high-index material with supporting structures. The optical properties and the design criteria of the proposed fiber are evaluated by the compact two In particular, the influence of the number and width of supporting strips on the leakage loss of the fiber is investigated. Furthermore, the mechanical performances of the fiber are estimated by finite-element method, confirming that hollow-core fibers with a reasonable size and number of supporting strips are reliable.