A study of automatic fabrication technique of optical circuits

光电路自动化制造技术研究

• 批准号: 09555112
• 负责人: HATAKEYAMA Iwao
• 金额: $ 5.06万
• 依托单位: Ibaraki National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555112/
• 关键词: Optical circuits; Phase-conjugate mirror (PCM); Two facing phase-conjugate wave (PCW); PCW reflectivity; Optical hardening resin; Oscillation of PCW; 光ファイバ; 結合用光導波路; モードフィールド整合

An automatic fabrication technique of optical circuits using by the oscillation of the phase-conjugate waves (PCW) between two facing phase-conjugate mirrors(PCM)was studied. The purpose of this technique was to fabricate the optical coupler and branch circuits automatically according to the optical path made by the light hardening resins hardened by the PCW.Our studies reveal the following results. (1) The connecting path between two fibers is fabricated by the radiation light from one fiber and the light hardening resins inserted between two fibers . (2) The PCW reflectivity by the transmission light through the fibers decrease because the increase of the spatial frequencies by the mode conversion. (3) The time reversing of the PCW is observed directly by the microscope set on the two different size core fibers propagating the PCW.The PCW radiated from large size core is focused on the other small size core. (4) In the free space, the oscillation of the POW between two facing PCMs is continued due to the sellection of the incidence power conditions to the two PCMs. And the oscillation powers are able to be simulated by the reflectivity characters of two PCMs. On the othe hand, the optical circuits have not been succeeded yet, because the PCW powers oscillated through two fibers have been too weak to harden the light hardening resin.

研究了一种利用相位共轭波在两面相共轭镜之间的振荡自动制作光学电路的技术。该技术的目的是根据经PCW硬化的光硬化树脂形成的光路自动制造光耦合器和分支电路。我们的研究揭示了以下结果。(1)两根纤维之间的连接路径是由一根纤维的辐射光和两根纤维之间插入的光硬化树脂制成的。(2)由于模式转换增加了空间频率，通过光纤的透射光反射率降低。(3)通过设置在两种不同尺寸的芯纤维上的显微镜，直接观察到PCW的时间反转。大尺寸堆芯辐射出的PCW集中在其他小尺寸堆芯上。(4)在自由空间中，由于对两个面向pcm的入射功率条件的选择，使得POW在两个面向pcm之间的振荡得以继续。利用两种PCMs的反射率特性可以模拟其振荡功率。另一方面，光学电路尚未成功，因为通过两根光纤振荡的PCW功率太弱，无法硬化光硬化树脂。

项目成果

畠山 巌: "光ファイバを伝搬した位相共役光の復元性の入射位置依存性" 第45回応用物理学関係連合講演会予稿集. NO.3. 1023 (1998)

Iwao Hatakeyama：“光纤中传播的相位共轭光的可恢复性的入射位置依赖性”第 45 届应用物理学会会议记录第 1023 号（1998 年）。

I.Hatakeyama, K.Ichige, K.Yamaguchi: "An Observation of the Connecting Path of the Phase Conjugate Wave Propergated through Two Different Kinds of Fibers" The Transactions of the institute of electronics, information and communication engineers. C-1, Vol.

I.Hatakeyama、K.Ichige、K.Yamaguchi：“通过两种不同类型的光纤传播的相位共轭波的连接路径的观察”电子、信息和通信工程师学会会刊。