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
Design and characterization of single-mode holey fibers with low bending losses
TL;DR: A novel type of bending-insensitive single-mode holey fiber that has a doped core and two layers of holes with different air-hole diameters is proposed and demonstrated.
Journal ArticleDOI
Polarization splitter in three-core photonic crystal fibers.
TL;DR: Numerical simulations with a full vectorial beam propagation method demonstrate that it is possible to obtain a 1.9-mm-long splitter with the extinction ratio better than -20 dB and a bandwidth of 37nm.
Proceedings ArticleDOI
2 × 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation
Takayuki Kobayashi,Hidehiko Takara,Akihide Sano,Takayuki Mizuno,Hiroto Kawakami,Yutaka Miyamoto,K. Hiraga,Yoshiteru Abe,Hirotaka Ono,Masaki Wada,Yusuke Sasaki,Itaru Ishida,Katsuhiro Takenaga,Shoichiro Matsuo,Kunimasa Saitoh,Makoto Yamada,Hiroji Masuda,Toshio Morioka +17 more
TL;DR: In this paper, the authors demonstrate 12-core fiber bidirectional longhaul transmission with sub-petabit-class capacity (2 × 344 Tb/s) using inter-core crosstalk management and multicarrier nonlinear compensation.
Journal ArticleDOI
A novel approach for designing photonic crystal fiber splitters with polarization-independent propagation characteristics
TL;DR: In this article, a novel class of polarization-independent splitters based on the photonic crystal fiber (PCF) technology is proposed and numerically investigated, which can be employed in reconfigurable optical communication systems for performing wavelength de-multiplexing operation, especially for fiber-to-home applications, as well as the emerging passive optical network applications.
Journal ArticleDOI
Two-mode PLC-based mode multi/demultiplexer for mode and wavelength division multiplexed transmission
Nobutomo Hanzawa,Kunimasa Saitoh,Taiji Sakamoto,Takashi Matsui,Kyozo Tsujikawa,Masanori Koshiba,Fumihiko Yamamoto +6 more
TL;DR: The design of a PLC-based mode multi/demultiplexer (MUX/DEMUX) with an asymmetric parallel waveguide for mode division multiplexed (MDM) transmission that can support C-band WDM-MDM transmission is reported.