K
Kunimasa Saitoh
Researcher at Hokkaido University
Publications - 528
Citations - 13643
Kunimasa Saitoh is an academic researcher from Hokkaido University. The author has contributed to research in topics: Photonic-crystal fiber & Photonic crystal. The author has an hindex of 59, co-authored 507 publications receiving 12181 citations. Previous affiliations of Kunimasa Saitoh include Clemson University.
Papers
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Journal ArticleDOI
Chromatic dispersion control in photonic crystal fibers: application to ultra-flattened dispersion
TL;DR: In order to control dispersion and dispersion slope of indexguiding photonic crystal fibers (PCFs), a new controlling technique of chromatic dispersion in PCF is reported and it is shown from numerical results that it is possible to design a fourring PCF with flattened dispersion.
Journal ArticleDOI
Full-vectorial imaginary-distance beam propagation method based on a finite element scheme: application to photonic crystal fibers
Kunimasa Saitoh,Masanori Koshiba +1 more
TL;DR: In this article, a full vectorial imaginary distance beam propagation method based on a finite element scheme is proposed to investigate the leakage due to a finite number of arrays of air holes in photonic-crystal holey fibers (HFs).
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Analytical Expression of Average Power-Coupling Coefficients for Estimating Intercore Crosstalk in Multicore Fibers
TL;DR: In this paper, an analytical expression of the average power-coupling coefficient (PCC) based on an exponential autocorrelation function is derived, resulting in no need for heavy numerical computations.
Proceedings ArticleDOI
1.01-Pb/s (12 SDM/222 WDM/456 Gb/s) Crosstalk-managed Transmission with 91.4-b/s/Hz Aggregate Spectral Efficiency
Hidehiko Takara,Akihide Sano,Takayuki Kobayashi,Hirokazu Kubota,Hiroto Kawakami,Akihiko Matsuura,Yutaka Miyamoto,Yoshiteru Abe,Hirotaka Ono,Kota Shikama,Yukihiro Goto,Kyozo Tsujikawa,Yusuke Sasaki,Itaru Ishida,Katsuhiro Takenaga,Shoichiro Matsuo,Kunimasa Saitoh,Masanori Koshiba,Toshio Morioka +18 more
TL;DR: In this article, the authors demonstrate 1.01-Pb/s transmission over 52 km with the highest aggregate spectral efficiency of 91.4 b/s/Hz by using low-crosstalk one-ring-structured 12-core fiber.
Journal ArticleDOI
Heterogeneous multi-core fibers: proposal and design principle
TL;DR: A new type of optical fiber called heterogeneous multi-core fiber (heterogeneous MCF) is proposed towards future large-capacity optical-transport networks and the design principle is described.