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Dive into the research topics where Nobuaki Mitamura is active.

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Featured researches published by Nobuaki Mitamura.


optical fiber communication conference | 2000

Flexibly variable spectrum equalizer for spectral tilt compensation

Nobuaki Mitamura; Hiroshi Nagaeda; N. Shukunami; Norihisa Naganuma; N. Fukushima

A new variable-spectrum-equalizer (VSEQ) which combines the polarization dependence of dielectric film with magneto-optics is proposed and demonstrated. The VSEQ features flexible equalization capability with a simple drive-circuit maintaining wide dynamic-range (7 dB) and wide bandwidth (35 nm).


Archive | 2001

Apparatus for variable wavelength dispersion and wavelength dispersion slope

Nobuaki Mitamura; Yuichi Kawahata


Archive | 2002

Variable polarization plane rotator and optical device using same

Hiroshi Nagaeda; Nobuaki Mitamura; Kazuaki Akimoto


Archive | 2002

Device using a virtually-imaged phased array (VIPA) with an improved transmission wave characteristic of output light

Yasuhiro Yamauchi; Yuichi Kawahata; Nobuaki Mitamura; Hirohiko Sonoda


Archive | 2003

Transmission wavelength characteristics variable optical element, and wavelength characteristics variable apparatus, optical amplifier, and optical transmission system, using same

Hirotomo Izumi; Takashi Ishiwada; Nobuaki Mitamura


Archive | 2004

WAVELENGTH DISPERSION COMPENSATING APPARATUS

Nobuaki Mitamura; Shinji Maruyama


Archive | 2004

Wavelength dispersion generation apparatus, multi-faced mirror used for wavelength dispersion generation apparatus, and method for manufacturing thereof

Nobuaki Mitamura


Archive | 2002

Optical apparatus and device

Nobuaki Mitamura; Hirotomo Izumi; Yuichi Kawahata


Archive | 2001

Wavelength characteristic variable apparatus

Nobuaki Mitamura; Norihisa Naganuma


Archive | 2000

Airgap type etalon and apparatus utilizing the same

Nobuaki Mitamura; Hiroshi Nagaeda

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