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A Novel Photonic Crystal Fiber Design for Large Effective Area and High Negative Dispersion
Nguyen Hoang HAI Yoshinori NAMIHIRA Feroza BEGUM Shubi F. KAIJAGE Tatsuya KINJO S.M. Abdur RAZZAK Nianyu ZOU
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.