Open AccessDesign and performance of mid-IR dispersion in photonic crystal fiber prepared from a flattened chalcogenide glass
Author(s) -
Peilong Yang,
Shixun Dai,
Yi Cui,
Peiqing Zhang,
Xunsi Wang,
Yinan Wu,
Yinsheng Xu,
Lin Changgui
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.014210
Subject(s) - materials science , photonic crystal fiber , dispersion (optics) , chalcogenide , optics , multipole expansion , chalcogenide glass , photonic crystal , fiber , optoelectronics , wavelength , physics , composite material , quantum mechanics
In this paper, using the self-made Ge20Sb15Se65 chalcogenide glass as matrix material, we design an infrared octagon dispersion flattened photonic crystal fiber, and the mid-IR dispersion and transmission characteristics are numerically studied using the multipole method. Results show that when we control the duty ratio (d/Λ) in 0.323–0.367, the dispersion and transmission properties in the 3–5 μm range are adjustable. When we set the hole spacing Λ=3.4 μm, hole diameter d=1.1 μm, in the 4.1–4.9 μm band, the fiber dispersion fluctuates between-0.8 ps·nm-1·km-1 and 0.8 ps·nm-1·km-1, and shows single-mode transmission, low loss (LossAeff2) characteristics, thus it is suitable for nonlinear applications in mid-IR band.