Hajime Takeya
Mitsubishi
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Publication
Featured researches published by Hajime Takeya.
optical fiber communication conference | 2001
Sadayuki Matsumoto; Takuya Ohira; Masakazu Takabayashi; Junichiro Hoshizaki; Hajime Takeya; Shigeru Matsuno; Kiichi Yoshiara; Takashi Sugihara; Katsuhiro Shimizu; Yukio Kobayashi; Minoru Hashimoto; Shinichi Takagi; Toshiya Murakami
We developed tunable dispersion equalizer with a chirped fiber grating and a divided thin film heater composed thirty-two thin film heaters. The divided thin film heater took an important role in the control of dispersion and dispersion slope, moreover the correction of group delay ripples. We successfully demonstrated the dispersion change from -304 ps/nm to -196 ps/nm and the dispersion slope change from +100 ps/nm/sup 2/ to -300 ps/nm/sup 2/.
Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (1999), paper CA7 | 1999
Hajime Takeya; Sadayuki Matsumoto; Kiichi Yoshiara; Masakazu Takabayashi; Shoji Miyashita; Fusaoki Uchikawa
Recently, many researchers have been studying optical waveguide devices using photo-induced Bragg grating for their application to wavelength division multiplexing (WDM) communication systems.
Archive | 2000
Masakazu Takabayashi; Kiichi Yoshiara; Sadayuki Matsumoto; Junichiro Hoshizaki; Takeyuki Maegawa; Hajime Takeya; Kiyohide Sakai; Minoru Hashimoto; Fusaoki Uchikawa
Archive | 1999
Takeshi Maekawa; Shoji Miyashita; Masakazu Takabayashi; Hajime Takeya; Hidefusa Uchikawa; Kiichi Yoshiara; 英興 内川; 武之 前川; 喜市 吉新; 元 竹谷; 正和 高林
Archive | 2001
Masakazu Takabayashi; Sadayuki Matsumoto; Takuya Ohira; Kiichi Yoshiara; Junichiro Hoshizaki; Hajime Takeya; Shigeru Matsuno
Archive | 2001
Sadayuki Matsumoto; Takuya Ohira; Masakazu Takabayashi; Kiichi Yoshiara; Shigeru Matsuno; Hajime Takeya; Junichiro Hoshizaki
Archive | 2001
Sadayuki Matsumoto; Takuya Ohira; Masakazu Takabayashi; Kiichi Yoshiara; Shigeru Matsuno; Hajime Takeya; Junichiro Hoshizaki
Archive | 2004
Hajime Takeya; Tsuyoshi Ozaki; Steven Hahn
Archive | 2001
Junichiro Hoshizaki; Sadayuki Matsumoto; Shigeru Matsuno; Takuya Ohira; Masakazu Takabayashi; Hajime Takeya; Kiichi Yoshiara; 喜市 吉新; 卓也 大平; 潤一郎 星崎; 貞行 松本; 繁 松野; 元 竹谷; 正和 高林
Archive | 1996
Katsuhiro Imada; Hajime Takeya; Hidefusa Uchikawa; Kiichi Yoshiara; 勝大 今田; 英興 内川; 喜市 吉新; 元 竹谷
