Optical waveguides connection with self-correction of mode field mismatches

具有模场失配自校正功能的光波导连接

• 批准号: 12555103
• 负责人: HATAKEYAMA Iwao
• 金额: $ 4.67万
• 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: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12555103/
• 关键词: Optical Circuits; Phase-coniugate mirror(PCM); Phase-coniugate wave(PCW); Made field; photorefractlve crystal; Oscillatiro of PCW; Connection at optical waveguides; 対向位相共役鏡; BaTiO3; 光導波路; 光導波路の結合

Automatic connection of two different mode field waveguides by oscillation of the phase conjugate waves(PCVV) between two faced phase conjugate mirrors(PCM) is studied. Our studies revealed the following results. (DPCW generated from the transmitted waves through two different waveguides corrects the mode field differences automatically. (2)The PCW reflectivities of the transmitted waves between two waveguides with connection mismatches like the distances and axis misalignments have the same values against the distances, and have the almost same values against tine normalized axis misalignment by the core radius. (3) The PCW oscillation between two faced PCM is influenced by the optical attenuation values of the inclusions. The tolerance limit of the attenuation depends on the s parameter of the PCM, and the parameter is decided by the interaction coefficient and the interaction length. The estimated attenuation value from the hotorefractive crystal is 40%. (4) The realization of the practical fabrication system is difficult if the tolerance is restricted within 40%. The artificial generation of the PCW may enable us to avoid the difficulties. The feasibility of the DMD type spatial light modulation as the input device to the PCM is confirmed.

研究了利用相位共轭镜（PCM）之间的相位共轭波（PCVV）振荡实现两个不同模式场波导的自动连接。我们的研究揭示了以下结果。(DPCW由通过两个不同波导的透射波产生的模式场自动校正模式场差异。（2）在距离和轴向不对准等连接不匹配的情况下，两波导间的PCW反射率随距离的变化具有相同的值，随纤芯半径归一化的轴向不对准的变化具有几乎相同的值。(3)相变材料中包裹体的光衰减值对相变材料的相变波振荡有影响。衰减的容限取决于PCM的s参数，而该参数又由相互作用系数和相互作用长度决定。估计光折变晶体的衰减值为40%。(4)如果公差限制在40%以内，实际加工系统的实现是困难的。人工生成PCW可以使我们避免这些困难。证实了DMD型空间光调制器作为PCM输入器件的可行性。

项目成果

飯村浩二, 鈴木香奈子, 畠山巌: "光導波路伝搬光に対する位相共役光の特性"第8回電気学会東京支部茨城支所研究発表会講演予稿集. 125 (2000)

Koji Iimura、Kanako Suzuki、Iwao Hatakeyama：“光波导中传播的光的相位共轭光的特性”日本电气工程师学会第8届茨城分会研究会议论文集，东京分会125（2000）。

I.Hatakeyama,: "Simulation of the Optical Oscillation Between Two Faced Phase Conjugate Mirrors"RESEARCH REPORTS OF IBARAKI NATIONAL COLLEGE OF TECHNOLOGY. No.35. 77-82 (2000)

I.Hatakeyama，：“两面相位共轭镜之间的光学振荡的模拟”茨城国立工业大学的研究报告。

I.Hatakeyama,: "Picture Inputting to phase-conjugate mirror by digital micromirror device projector"Extended Abstracts(The 48th Spring Meeting, 2001) ; The Japan Society of Applied Physics and Relatede Societies. No.3. 1017 (2001)

I.Hatakeyama，：“通过数字微镜器件投影仪将图像输入到相位共轭镜”扩展摘要（第48届春季会议，2001年）；

畠山巌,大森匡彦,高信尚史: "対向位相共役鏡間での共振に対する系の減衰率の影響"第47回応用物理学関係連合講演会講演予稿集. No.3. 1199 (2000)

Iwao Hatakeyama、Masahiko Omori、Takashi Takanobu：“系统阻尼率对反相共轭镜之间共振的影响”第 47 届应用物理学会会议记录第 3. 1199 号（2000 年）。

畠山巌, 市毛勝正, 山口一弘: "対向フォトリフラクティブ位相共役鏡間での共振に対する系の減衰率の影響"電子情報通信学会論文誌C. J84-CNo.8. 652-659 (2001)

Iwao Hatakeyama、Katsumasa Ichige、Kazuhiro Yamaguchi：“系统衰减率对相对光折射相位共轭镜之间共振的影响”IEICE Transactions C. J84-CNo.8 (2001)。