Shota Saitoh
Fujikura
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Publication
Featured researches published by Shota Saitoh.
european conference on optical communication | 2015
Taiji Sakamoto; Takashi Matsui; Kunimasa Saitoh; Shota Saitoh; Katsuhiro Takenaga; Shoichiro Matsuo; Yuki Tobita; Nobutomo Hanzawa; Kazuhide Nakajima; Fumihiko Yamamoto
The highest relative core multiplicity factor of more than 22 is achieved by arranging a 6-mode 12-core fibre in 227-μm cladding. A quadratic double ring core arrangement realizes sufficiently low crosstalk and enables us to use advanced multi-level modulation.
european conference on optical communication | 2015
Yusuke Sasaki; Shota Saitoh; Yoshimichi Amma; K. Takenaga; Shoichiro Matsuo; Kunimasa Saitoh; Toshio Morioka; Yutaka Miyamoto
A homogeneous 31-core fibre with a cladding diameter of 230 μm for quasi-single-mode transmission is designed and fabricated. LP01-crosstalk of -38.4 dB/11 km at 1550 nm is achieved by using few-mode trench-assisted cores.
Optics Express | 2017
Yuki Tobita; Takeshi Fujisawa; Taiji Sakamoto; Takashi Matsui; Shota Saitoh; Katsuhiro Takenaga; Kazuhiko Aikawa; Shinichi Aozasa; Kazuhide Nakajima; Kunimasa Saitoh
High spatial multiplicity fiber designs are presented for homogeneous and heterogeneous 4LP-mode multicore fibers (MCFs) that support six spatial modes per core. The high-spatial-density 4LP-mode MCF design methodology is explained in detail. The influence of the number of cores on the cladding diameter (Dcl) and relative core multiplicity factor (RCMF) is investigated. The optimal core designs and MCF layouts with square and triangular lattices maintain glass fiber reliability (maximum Dcl = 250 μm). For homogeneous 4LP-mode MCFs, a 19-core triangular-lattice fiber gives the highest RCMF of 61.7. For heterogeneous 4LP-mode MCFs, an RCMF of 65.4 is obtained for a 21-core square-lattice fiber.
optical fiber communication conference | 2016
Takeshi Fujisawa; Ren Tojo; Shota Saitoh; Shoichiro Matsuo; Kunimasa Saitoh
An air-hole added six-core fiber with extremely small group delay spread is proposed for mode-division-multiplexing-system. A principal mode analysis reveals that 95% reduction of the group delay spread is possible compared with conventional coupled-six-core fibers.
european conference on optical communication | 2015
Shota Saitoh; Yusuke Sasaki; K. Takenaga; Masaharu Ohashi; Kunimasa Saitoh; Kazuhide Nakajima; Shoichiro Matsuo
The inter-core crosstalk of a fabricated few-mode multicore fibre is theoretically and experimentally investigated. By changing the direction of the LP<sub>11</sub> mode, the crosstalk between the LP<sub>11</sub> mode and the LP<sub>01</sub> mode decreased by more than 10 dB.
optical fiber communication conference | 2016
Taiji Sakamoto; Takashi Matsui; Kunimasa Saitoh; Shota Saitoh; Katsuhiro Takenaga; Takayuki Mizuno; Yoshiteru Abe; Kohki Shibahara; Yuki Tobita; Shoichiro Matsuo; Kazuhiko Aikawa; Shinichi Aozasa; Kazuhide Nakajima; Yutaka Miyamoto
Journal of Lightwave Technology | 2017
Taiji Sakamoto; Takashi Matsui; Kunimasa Saitoh; Shota Saitoh; Katsuhiro Takenaga; Takayuki Mizuno; Yoshiteru Abe; Kohki Shibahara; Yuki Tobita; Shoichiro Matsuo; Kazuhiko Aikawa; Shinichi Aozasa; Kazuhide Nakajima; Yutaka Miyamoto
photonics society summer topical meeting series | 2018
T. Sakamoto; Kunimasa Saitoh; Shota Saitoh; Kohki Shibahara; M. Wada; Yoshiteru Abe; A. Urushibara; K. Takenaga; Takayuki Mizuno; Takashi Matsui; Kazuhiko Aikawa; Yutaka Miyamoto; Kazuhide Nakajima
optical fiber communication conference | 2018
Shota Saitoh; K. Takenaga; Kazuhiko Aikawa
optical fiber communication conference | 2018
Kohki Shibahara; Takayuki Mizuno; L. Doowhan; Yutaka Miyamoto; Hirotaka Ono; Kazuhide Nakajima; Shota Saitoh; K. Takenaga; Kunimasa Saitoh
