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A Novel Photonic Crystal Fiber Design for Large Effective Area and High Negative Dispersion
Nguyen Hoang HAI
Shubi F. KAIJAGE
S.M. Abdur RAZZAK
IEICE TRANSACTIONS on Electronics
Publication Date: 2008/01/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: LETTER
photonic crystal fiber, large effective area, negative dispersion, finite difference method,
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In this paper, we propose and demonstrate a novel type of PCF that has two cladding layers with Ge rods at the center core. We numerically show that it is possible to design a single mode PCF with large effective area greater than 200 µm2 over the whole wavelength above 1.2 µm. The proposed large mode area PCF (LMA-PCF) exhibits a high negative dispersion coefficient from -186 to -158 [ps/(nm-km)] in all wavelengths ranging from 1.2 µm to 1.8 µm. Effective single mode operation of LMA-PCF is confimed for the entire band of interest.