@article{oai:kanazawa-u.repo.nii.ac.jp:00007518,
 author = {飯山, 宏一 and Iiyama, Koichi and Yamashita, Zennosuke and Takamiya, Saburo},
 journal = {Proceedings of WFOPC2005 - 4th IEEE/LEOS Workshop on Fibres and Optical Passive Components},
 month = {Jan},
 note = {Novel structure of an index-guiding photonic crystal fiber (PCF) is proposed for flattened dispersion characteristics. As compared with the conventional PCFs, the proposed PCF has a following feature in its structure; the first ring area contains no air holes, and the third ring area also contains no air holes. Then the proposed PCF has a large core and a concentric missing ring. The chromatic dispersion was numerically simulated by the semi-vector finite difference method. The chromatic dispersion becomes almost flat in 1300 ∼ 1650 nm wavelength range when the air hole diameter is about 0.35 times the air hole spacing. Especially the chromatic dispersion is -1 ∼ 0 (ps/nm/km) in the above wavelength range when the air hole spacing is 1.25 μm and the air hole diameter is 0.43 μm., 金沢大学大学院自然科学研究科電子科学, 金沢大学工学部},
 pages = {10--13},
 title = {Design of dispersion flattened photonic crystal fiber with a large core and a concentric missing ring},
 volume = {2005},
 year = {2005}
}