Modification of Surface-Acoustic-Wave-Driven Tandem Acoustooptic Frequency Shifter for Improvement of Diffraction Properties
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概要
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A modification of the waveguide shape of the monolithically integrated tandem waveguide-type acoustooptic frequency shifter (AOFS) was investigated analytically and experimentally to improve its diffraction properties. The simulated diffraction properties were improved by decreasing the vertex angle of the tapered waveguide. The analytically obtained maximum doubly diffracted beam power increased from 0.43 in the previous AOFS to 0.55. The diffraction properties of a fabricated tandem AOFS were measured and compared with the analytical results.
- 2009-07-25
著者
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Kakio Shoji
Interdisciplinary Graduate School Of Medicine And Engineering University Of Yamanashi
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Nakagawa Yasuhiko
Interdisciplinary Graduate School Of Medicine And Engineering University Of Yamanashi
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Ito Hiromasa
Graduate School Of Engineering Chiba Institute Of Technology
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Hara Takefumi
Graduate School of Engineering, Tohoku University, 6-6-11 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8579, Japan
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Hara Takefumi
Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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Shinkai Susumu
Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu 400-8511, Japan
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Shinkai Susumu
Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511, Japan
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