| Presentation | 2011-10-31 Acoustooptic Bragg Diffraction in Ti-Diffused Rotated Y-cut LiNbO_3 Optical Waveguide Yuji KOBAYASHI, Shoji KAKIO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | By utilizing a leaky surface acoustic wave (LSAW), an acoustooptic (AO) interaction with a lower driving power can be expected because the LSAW generally has a higher electromechanical coupling factor (K^2) than the ordinary Rayleigh wave. However, little is known about AO interaction utilizing the LSAW. In this study, an AO Bragg deflector was fabricated using Ti-diffused 64°-roteted Y-cut LiNbO_3 for the LSAW, and the properties of Bragg diffraction were investigated. The LSAW power required for maximum diffraction P_<100> was determined theoretically and experimentally, and was compared with that of an AO Bragg deflector using Ti-diffused 128°-roteted Y-cut LiNbO_3 for the Rayleigh wave. Unfortunately, the utilization of the LSAW was found to be not suitable for AO Bragg diffraction because the electric field of the guided wave is perpendicular to the direction of the particle displacement of the LSAW for both TE and TM modes. However, the theoretical estimation of the AO interaction due to the LSAW was successfully performed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Leaky surface acoustic wave / Acoustooptic Bragg diffraction / Ti-diffused LiNbO_3 optical waveguide |
| Paper # | US2011-63 |
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| Committee | US |
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| Conference Date | 2011/10/24(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustooptic Bragg Diffraction in Ti-Diffused Rotated Y-cut LiNbO_3 Optical Waveguide |
| Sub Title (in English) | |
| Keyword(1) | Leaky surface acoustic wave |
| Keyword(2) | Acoustooptic Bragg diffraction |
| Keyword(3) | Ti-diffused LiNbO_3 optical waveguide |
| 1st Author's Name | Yuji KOBAYASHI |
| 1st Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi() |
| 2nd Author's Name | Shoji KAKIO |
| 2nd Author's Affiliation | Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi |
| Date | 2011-10-31 |
| Paper # | US2011-63 |
| Volume (vol) | vol.111 |
| Number (no) | 272 |
| Page | pp.pp.- |
| #Pages | 6 |
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