Open AccessInvestigation of hollow-core photonic band-gap fiber at visible wavelengths
Author(s) -
Yuan Jin-Hui,
Lantian Hou,
Guiyao Zhou,
Wei Dong-Bin,
Haiyun Wang,
Shihua Dong,
Qingyue Wang,
Bowen Liu,
Minglie Hu
Publication year - 2008
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.57.4230
Subject(s) - cladding (metalworking) , materials science , wavelength , refractive index , optics , photonic crystal , photonics , band gap , core (optical fiber) , stack (abstract data type) , photonic crystal fiber , asymmetry , optoelectronics , physics , metallurgy , quantum mechanics , computer science , programming language
Based on full-vector plane-wave method (FVPWM), the hollow-core photonic band-gap fiber (HC-PBGF) fabricated using the improved twice stack-and-draw technique has been simulated. Under given values of propagation constant β, some valid photonic band-gaps (PBGs) with different sizes will emerge within the wave band of 500—1000 nm. For different values of the effective refractive index, the air-guided modes can exist in different forms in part of PBGs. Comparing the experimental data with the simulation result, we have discovered that the measured positions of PBGs are shifted to shorter wavelengths distinctly. The primary reasons are considered to be the structure asymmetry along longitudinal direction and the existence of interstitial holes at nodes in the cladding region.