H
Hiroshi Sunagawa
Publications - 4
Citations - 97
Hiroshi Sunagawa is an academic researcher. The author has contributed to research in topics: Diffraction & Light beam. The author has an hindex of 3, co-authored 4 publications receiving 97 citations.
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Patent
Optical waveguide device
TL;DR: An optical waveguide device for coupling an external wave with a guided wave by means of a grating coupler formed on a substrate is described in this article, where the coupler is further coated with a cladding layer.
Patent
Waveguide-type acoustooptic device
Hatori Masami,Hiroshi Sunagawa +1 more
TL;DR: In this article, a light beam is introduced into an optical waveguide on a substrate of LiNbO3, and diffracted by a surface elastic wave generated by a tilted-finger chirped interdigital transducer on the waveguide.
Patent
Light modular and recording device employing same
Masami Hatori,Hiroshi Sunagawa +1 more
TL;DR: In this article, a light modulator includes an interdigital transducer having a plurality of interdigital electrode fingers for generating surface elastic waves having respective different frequencies in an optical waveguide.
Journal ArticleDOI
Waveguide-Type Multifrequency Acoustooptic Modulators
TL;DR: In this article, a multi-frequency acoustooptic modulators (MF-AOMs) utilizing a Ti-diffused LiNbO3 waveguide are investigated for application to high-speed laser beam scanners.