Development of Wideband Acoustooptic Integrated Circuits for Parallel Information Processing

并行信息处理宽带声光集成电路的研制

• 批准号: 02555082
• 负责人: NISHIHARA Hiroshi
• 金额: $ 4.29万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02555082/
• 关键词: Optical Integrated Circuits; Optical Information Processing; Optical Waveguides; Acoustoptic Devices; Parallel Data Processing

1. Survay on applications of integrated optics for information processingA survey was made on the applications of integrated optics devices using LiNbO_3 waveguides alid grating components for optical information processing and optical computing, and the possibilities and the device feasibilities were discussed.2. Fabrication of integrated-optic RF spectrum analyzer and integrated laser printer head(1) The two kinds of devices were designed and the details of the specifications were determined, and the theoretical performances were clalyfied.(2) Fabrication techniques for the acoustooptic deflector/modulator using electron beam writing were established, and a frequency bandwidth of 1GHz was accomplished.(3) Fabrication technique of Fresnel lenses in LiNbO_3 waveguide was established.(4) Integrated devices were implemented and the operations were experimentally demonstrated.3. Evaluation and improvement of the device performances(1) The overall performances of the tio devices were evaluated, and it was clarified that an important factor that limits the performances was the efficiency of grating couplers.(2) To improve the efficiency of grating couplers, a high-index-layer cladded type was newly proposed, and it was shown through the theoretital analysis that efficiencies over 90% were feasible. A high efficiency of 89% was experimetally accomplished.4. Development for future alllications(1) An integrated acoustoptic correlator configuration was proposed, and the operation was demonstrated experimentally with a fabircated device.(2) An integrated-optic full-parallel matrix-vector multipiler was proposed and demonstrated.(3) To enable integration of short-wavelength light source, waveguide second harmonic generation devices were designed. Preliminary experiment was made with encouraging results.(4) As a method for coupling parallel data in free space into a waveguide, imaging by a focusing grating coupler was studied. The possibility was experimentally demonstrated.

1.集成光学在信息处理中的应用综述本文综述了LiNbO_3光波导和光栅器件在光信息处理和光计算中的应用，讨论了其可能性和器件特点.集成光学射频频谱分析仪和集成激光打印头的研制（1）设计了两种器件，确定了具体的技术指标，并对理论性能进行了分析。(2)建立了电子束写入声光偏转器/调制器的制作工艺，实现了1GHz的带宽。(3)建立了铌酸锂波导菲涅耳透镜的制作工艺。(4)实现了集成器件，并进行了实验验证.器件性能的评价和改进（1）对tio器件的总体性能进行了评价，明确了限制器件性能的一个重要因素是光栅耦合器的效率。(2)为了提高光栅耦合器的效率，提出了一种高折射率层包覆型光栅耦合器，理论分析表明，效率达到90%以上是可行的。实验证明，该方法的效率高达89%.（1）提出了一种集成声相关器的结构，并在自制的器件上进行了实验验证。(2)提出并实现了一种集成光学全并行矩阵矢量乘法器。(3)为了实现短波长光源的集成，设计了波导二次谐波发生器件。初步实验结果令人鼓舞。(4)作为一种将自由空间中的并行数据耦合到波导中的方法，研究了聚焦光栅耦合器成像。实验证明了这种可能性。

项目成果

Y. Ishigame, T. Suhara and H. Nishihara: "LiNbO_3 waveguide second-harmonic generation devicce phase matched with fan-out domain-inverted gratings" Opt. Lett.16. 375-377 (1991)

Y. Ishigame、T. Suhara 和 H. Nishihara：“LiNbO_3 波导二次谐波发生器件相位与扇出域反转光栅匹配”

篠原 正幸,裏 升吾,栖原 敏明,西原 浩: "光情報並列読出し光集積回路デバイス" 電子情報通信学会技術報告. OQEー91. OQE91-146 (1991)

Masayuki Shinohara、Shogo Ura、Toshiaki Suhara、Hiroshi Nishihara：“光学信息并行读出光学集成电路器件”OQE-91 OQE91-146（1991）。

M.Fujimura,T.Suhara,H.Nishihara: "Integrated optic full parallel matrix-vector multiplier using angular coding technique" Int.TopicalMeeting on Optical Computing. 10H-7 (1990)

M.Fujimura、T.Suhara、H.Nishihara：“使用角度编码技术的集成光学全并行矩阵矢量乘法器”光学计算 Int.TopicalMeeting。

西原 浩: "回折格子を用いた光集積技術" 応用物理. 61. 2-13 (1992)

Hiroshi Nishihara：“使用衍射光栅的光学集成技术”应用物理 61. 2-13 (1992)。

M. Fujimura, T. Suhara and H. Nishihara: "Integrated acoustoptic correla tor using a biaxial focusing grating coupler" Int. J. Optoelectronics. (1992)

M. Fujimura、T. Suhara 和 H. Nishihara：“使用双轴聚焦光栅耦合器的集成声光相关器” Int。