Study of Integrated-Optic Taper Pickup Device

集成光学锥度拾取装置的研究

• 批准号: 01850069
• 负责人: MIYAZAKI Yasumitsu
• 金额: $ 5.38万
• 依托单位: Toyohashi University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01850069/
• 关键词: Optical pickup; Integrated optics; Tapered waveguide; Acousto-optics; Magneto-optics; Pit scattering

[1] Tapered waveguide device for bean focusingOptical beam focusing characteristics from tapered waveguides were theoretically investigated. It was found that the output beam was focused at a distance 60mum from the end facet with the spot size of 3. lmum. The control of the focal length due to electro-optic effect was also studied.[2] Beam control in graded-index waveguideFocusing of optical guided waves was demonstrated with a graded-index waveguide formed by Ti indiffusion. An optimum index distribution was found using wave optics. Restoration of degraded optical beams by means of spatial filtering and propagation characteristics of multiple beams were discussed.[3] Magneto-optic devicesWaveguide-type monosectional optical isolators using magneto-optic mode-conversion were studied and fundamental properties for isolators and circulators were clarified. High-speed optical switching by magnetostatic surface waves was demonstrated and an efficient device with multilayer structure was discussed.[4] Switching and deflection using acousto-optic devicesWavelength-selective switching was demonstrated with collinear acousto-optic devices fabricated on a LiNbO3 substrate. Deflection of multiple optical beams due to Bragg diffraction by SAW was also investigated.[5] Scattering from pitsOptical scattering characteristics from pits of optical disks were theoretically analyzed using finite element and boundary element methods.

[1]锥形波导光束聚焦器件对锥形波导光束聚焦特性进行了理论研究。结果发现，输出光束被聚焦在距离端面60 μ m处，光斑尺寸为3。妈妈。研究了电光效应对焦距的控制。[2]梯度折射率波导中的光束控制研究了由Ti内扩散形成的梯度折射率波导对光导波的聚焦。使用波动光学找到了最佳折射率分布。讨论了退化光束的空间滤波恢复方法和多光束的传输特性。[3]磁光器件研究了利用磁光模式转换的波导型单段光隔离器，阐明了隔离器和环行器的基本特性。介绍了利用静磁表面波实现高速光开关的原理，并讨论了一种高效的多层结构光开关器件。[4]利用声光器件实现的波长选择性开关利用在LiNbO3衬底上制作的共线声光器件进行了实验研究。研究了声表面波布拉格衍射对多光束的偏转效应。[5]凹坑的散射利用有限元和边界元方法对光盘凹坑的光散射特性进行了理论分析。

项目成果

Y. Miyazaki and Y. Yamakawa: "Beam scattering analysis of two dimensional dielectric pits by finite element method" Tech. Digest of OFSET'90. EMT-90-62. 147-153 (1990)

Y. Miyazaki 和 Y. Yamakawa：“通过有限元法对二维电介质凹坑进行光束散射分析” Tech。

Y. Miyazaki and K. Manabe: "Scattered near-field and induced current of a beam wave by pits on optical disks using boundary element analysis" Proc. Radio Science. 26. No. 1. 281-289 (1991)

Y. Miyazaki 和 K. Manabe：“使用边界元分析通过光盘上的凹坑散射近场和光束波感应电流”Proc。

Y. Miyazaki: SCIENCE FORUM. Electronics Material Technology for high blue luminescence (KOUKIDO AOIRO HAKKOU NO TAMENO DENSHI ZAIRYOU GIJYUTSU), 280 (1991)

Y.宫崎：科学论坛。

D.Oria,Y.Miyazaki: "Image transmission characteristics and spatial filtering in a thin-film GRIN optical waveguide" Graded Index Optical Systems Topical Meeting,Monterey. MD5. (1991)

D.Oria、Y.Miyazaki：“薄膜 GRIN 光波导中的图像传输特性和空间滤波”梯度折射率光学系统主题会议，蒙特雷。

Y.Miyazaki K.manabe: "Scattered near field and induced current of a beam wave by pits on optical disks using boundary element analysis" Radio Science. 26. (1991)

Y.Miyazaki K.manabe：“使用边界元分析计算光盘上凹坑的近场散射和光束波感应电流”《无线电科学》。