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Wiley Encyclopedia of Electrical and Electronics Engineering | 1999

Electro‐Optical Filters

Hajime Sakata

The sections in this article are 1 Directional Coupler Filters 2 Spectral Selectivity 3 Wavelength Tunability 4 Weighted Coupling 5 Dependence on the State of Polarization 6 Survey of Applications


Archive | 1987

Optical modulation device

Masao Yamanobe; Yasuyuki Watanabe; Hajime Sakata; Yukitoshi Ohkubo; Tomoyuki Umezawa; Kazuya Ishiwata; Takayuki Ishii; Akihiko Nagano; Etsuro Kishi; Ryoji Fujiwara


Archive | 1989

Liquid crystal light modulation device

Hajime Sakata


Archive | 1987

Display element and observation apparatus having the same

Hajime Sakata; Yasuyuki Watanabe; Masato Yamanobe; Yukitoshi Ohkubo; Akihiro Nagano


Archive | 1991

Optical apparatus using wavelength selective photocoupler

Hajime Sakata; Hidetoshi Nojiri


Archive | 1993

Diffraction grating type liquid crystal display device in viewfinder

Hajime Sakata


Archive | 1995

Oscillation polarization mode selective semiconductor laser, modulation method therefor and optical communication system using the same

Hajime Sakata


Archive | 1991

Optical modulation element having two-dimensional phase type diffraction grating

Akihiko Nagano; Etsuro Kishi; Ryoji Fujiwara; Yukitoshi Ohkubo; Michiyo Nishimura; Hajime Sakata; Takayuki Ishii; Masato Yamanobe


Archive | 1992

Multi-wavelength light detecting and/or emitting apparatuses having serially arranged grating directional couplers

Hajime Sakata; Shinsuke Takeuchi


Archive | 1998

Light deflection device and array thereof

Hajime Sakata; Takayuki Yagi

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