Hiroomi Kojima
Hitachi
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Publication
Featured researches published by Hiroomi Kojima.
IEEE Journal of Quantum Electronics | 1967
Yukio Hasegawa; Sadao Nomura; Hiroomi Kojima; Akira Sakanoue
An optical communication system based on the polarization characteristics of a single laser source is proposed. The return path is produced through mirror reflection and the mutual interference of each modulation signal transmitted between the two stations is eliminated by choosing the relative axial relations among the modulator crystals and the optical components contained in the system. The results were confirmed by telephone call experiments using ADP Pockels modulators. It was found that no mixing of signals occurred if we took the axial relations among the optical components and the modulator crystal as predicted by the theoretical results.
internaltional ultrasonics symposium | 1984
Mitsutaka Hikita; Toyoji Tabuchi; Hiroomi Kojima; Atsushi Sumioka; A. Nakagoshi; Yasuaki Kinoshita
Archive | 1975
Hiroomi Kojima; Hideo Zama; Sadao Nomura; Toyoji Tabuchi; Ryozo Murata
internaltional ultrasonics symposium | 1983
Mitsutaka Hikita; Toyoji Tabuchi; Hiroomi Kojima; A. Nakagoshi; Yasuaki Kinoshita
internaltional ultrasonics symposium | 1980
Mitsutaka Hikita; Yasuaki Kinoshita; Hiroomi Kojima; Toyoji Tabuchi
Archive | 1988
Hiroomi Kojima; Toyoji Tabuchi; Mitsutaka Hikita; Kazuhito Kurosawa; Atsushi Sumioka
Electronics Letters | 1979
Yasuaki Kinoshita; Mitsutaka Hikita; Toyoji Tabuchi; Hiroomi Kojima
Electronics Letters | 1980
Hiroomi Kojima; Yasuaki Kinoshita; Mitsuaki Hikita; Toyoji Tabuchi
Electronics Letters | 1984
Mitsutaka Hikita; Hiroomi Kojima; Toyoji Tabuchi; Yasuaki Kinoshita
Electronics Letters | 1980
Mitsutaka Hikita; Yasuaki Kinoshita; Hiroomi Kojima; Toyoji Tabuchi
