Open AccessStudy on dispersion compensation property of octagonal photonic crystal fibers
Author(s) -
Lichao Zhang,
Lantian Hou,
Guiyao Zhou
Publication year - 2011
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.60.054217
Subject(s) - materials science , cladding (metalworking) , photonic crystal fiber , multipole expansion , dispersion (optics) , optics , photonic crystal , fiber , optoelectronics , composite material , physics , quantum mechanics
The dispersion compensation property of octagonal photonic crystal fibers (PCFs) was simulated with multipole method in this paper.It was found that the dispersion, dispersion slope and Kappa parameter of PCFs can be designed precisely but changing the air hole size and the pitch in PCFs cladding.We compared photonic crystal fiber of hexagonal structure with that of octagonal structure, both of which have the same structure parameters. It was found that the octagonal structure easily abtains large negative dispersion and low non-linear coefficient. It was demonstrated that the octagonal structure has huge potential in designing diepersion compensation PCFs. So, we designed a novel PCF with octagonal structure.The PCF achieves a negative dispersion of -1434.9 ps·nm-1·km-1 and a negative dispersion slope of -4.6338 ps·nm-2·km-1 at λ=1.55 μm, which is far better than the conventional fibre.