Tomoya Shimizu
The Furukawa Electric Co., Ltd.
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Publication
Featured researches published by Tomoya Shimizu.
lasers and electro-optics society meeting | 2011
Kazuhide Nakajima; Takashi Matsui; Shinichi Aozasa; Tomoya Shimizu
We review the design and transmission characteristics of hole-assisted fiber (HAF) as a candidate for bending loss insensitive fiber (BIF). We also investigate the applicability of single-mode and hole-assisted type BIF to future access networks.
european conference on optical communication | 2006
K. leda; Kenji Kurokawa; Tomoya Shimizu; Katsusuke Tajima; Kazuhide Nakajima; Takashi Matsui; Kyozo Tsujikawa; Kazuyuki Shiraki; Izumi Sankawa
We achieved the first I Gbit/s visible transmission over a 1 km PCF. We succeeded in ultra-wide WDM transmission using 6 wavelengths from 658 to 1556 nm, which corresponds to a bandwidth of 263 THz.
optical fiber communication conference | 2010
Chisato Fukai; Kazuhide Nakajima; Tomoya Shimizu; Takashi Matsui; Yukihiro Goto; Toshio Kurashima
Optical wiring conditions are investigated numerically and experimentally with a viewpoint of MPI induced transmission performance degradation. We reveal the impact of the interval of the bending portion on MPI degradation for the first time.
european conference on optical communication | 2010
Takashi Matsui; Kazuhide Nakajima; Yukihiro Goto; Tomoya Shimizu; Toshio Kurashima
Single-mode hole-assisted-fibre (HAF) based optical cord reveals no multipath interference (MPI) degradation independent of the existence of a mode-field diameter mismatch. Moreover, sweep fusion splicing effectively reduces MPI even if the HAF has extremely strong confinement.
optical fiber communication conference | 2008
Tomoya Shimizu; Kazuhide Nakajima; Kazuyuki Shiraki; Nobutomo Hanzawa; Toshio Kurashima
A coupler type mode filter (MF) is proposed that provides higher order mode reduction at both 780 and 850 nm. A 10 Gbit/s, 870 m long transmission is demonstrated over a SMF by using the MF.
Nanophotonics | 2013
Kazuhide Nakajima; Kotaro Saito; Yusuke Yamada; Kenji Kurokawa; Tomoya Shimizu; Chisato Fukai; Takashi Matsui
Abstract Bending-loss insensitive fiber (BIF) has proved an essential medium for constructing the current fiber to the home (FTTH) network. By contrast, the progress that has been made on holey fiber (HF) technologies provides us with novel possibilities including non-telecom applications. In this paper, we review recent progress on hole-assisted type BIF. A simple design consideration is overviewed. We then describe some of the properties of HAF including its mechanical reliability. Finally, we introduce some applications of HAF including to high power transmission. We show that HAF with a low bending loss has the potential for use in various future optical technologies as well as in the optical communication network.
Optical Fiber Technology | 2008
Tomoya Shimizu; Kazuhide Nakajima; Kazuyuki Shiraki; Koji Ieda; Izumi Sankawa
Archive | 2013
Naomi Kumano; Iwao Shimotakahara; Ryuichi Sugizaki; Takeshi Yagi; Tomoya Shimizu; Takashi Matsui; Yukihiro Goto; Toshio Kurashima; Kazuhide Nakajima
Optical Fiber Technology | 2010
Kazuhide Nakajima; Tomoya Shimizu; Takashi Matsui; Chisato Fukai; Toshio Kurashima
IEICE Transactions on Communications | 2011
Kazuhide Nakajima; Tomoya Shimizu; Takashi Matsui; Chisato Fukai; Toshio Kurashima
