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Itaru Ishida
Researcher at Fujikura
Publications - 34
Citations - 860
Itaru Ishida is an academic researcher from Fujikura. The author has contributed to research in topics: Optical fiber & Optical time-domain reflectometer. The author has an hindex of 8, co-authored 34 publications receiving 743 citations. Previous affiliations of Itaru Ishida include Nippon Telegraph and Telephone.
Papers
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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.
Proceedings ArticleDOI
12-core × 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization
Takayuki Mizuno,Takayuki Kobayashi,Hidehiko Takara,Akihide Sano,Hiroto Kawakami,Tadao Nakagawa,Yutaka Miyamoto,Yoshiteru Abe,Takashi Goh,Manabu Oguma,Taiji Sakamoto,Yusuke Sasaki,Itaru Ishida,Katsuhiro Takenaga,Shoichiro Matsuo,Kunimasa Saitoh,Toshio Morioka +16 more
TL;DR: Dense SDM transmission of 20-WDM multi-carrier PDM-32QAM signals over a 40-km 12-core × 3-mode fiber with 247.9-b/s/Hz spectral efficiency is demonstrated.
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
409-Tb/s + 409-Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving
Akihide Sano,Hidehiko Takara,Takayuki Kobayashi,Hiroto Kawakami,Hiroki Kishikawa,Tadao Nakagawa,Yutaka Miyamoto,Yoshiteru Abe,Hirotaka Ono,Kota Shikama,Munehiko Nagatani,Takayoshi Mori,Yusuke Sasaki,Itaru Ishida,Katsuhiro Takenaga,Shoichiro Matsuo,Kunimasa Saitoh,Masanori Koshiba,Makoto Yamada,Hiroji Masuda,Toshio Morioka +20 more
TL;DR: Bidirectional transmission over 450 km of newly-developed dual-ring structured 12-core fiber with large effective area and low crosstalk is demonstrated, and 409-Tb/s capacities are achieved for both directions.
Journal ArticleDOI
12-core fiber with one ring structure for extremely large capacity transmission
Shoichiro Matsuo,Yusuke Sasaki,Tsuyoshi Akamatsu,Itaru Ishida,Katsuhiro Takenaga,Kazuhiro Okuyama,Kunimasa Saitoh,Masanori Kosihba +7 more
TL;DR: The feature of a multicore fiber with one-ring structure is theoretically analyzed and experimentally demonstrated and the MCF with the number of core larger than seven and the small crosstalk was demonstrated for the first time.