Multimode polarization-maintaining optical fiber using birefringence knocked out copolymer core

• Project/Area Number: 16H06117
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: The University of Electro-Communications
• Principal Investigator: furukawa rei 電気通信大学, 大学院情報理工学研究科, 准教授 (50589695)
• Research Collaborator: Nihei Eisuke
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥24,700,000 (Direct Cost: ¥19,000,000、Indirect Cost: ¥5,700,000); Fiscal Year 2018: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2017: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2016: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
• Keywords: ポリマー光ファイバー / 光弾性 / ひずみセンサー / 応力方向の検知 / ゼロ・ゼロ複屈折性ポリマー / 応力センサー / 複屈折 / 共重合 / 高分子構造・物性 / 偏波保持 / 複合材料・物性 / 光物性

Outline of Final Research Achievements

At the purpose to maintain polarization state using a large-core optical fiber, polymer optical fiber with core fabricated using poly(methyl methacrylate (MMA)/2,2,2-trifluoroethyl methacrylate (3FMA)/benzyl methacrylate (BzMA))=50.0/42.0/6.0(w/w/w)) was studied. As a result, the obtained fiber was demonstrated to have significantly minor phase shift among the cases before and after the deformation.

Academic Significance and Societal Importance of the Research Achievements

成果物であるpoly(MMA/3FMA/BzMA)をコアとする光ファイバーは、光ファイバーとしては太く大口径である部類ながら、応力に応じた位相シフトが抑制された機能を有するという点では他に例が無い光ファイバーが創出されたと言え、学術的意義が主張できる。
また、この光ファイバーのコアに、異方性が高く偏波次第で反応性が異なる特性を持つドーパントを分散することで、そのドーパント配向を利用したセンサーの創出という産業的意義が考えられる。その具体化検討として、二色性色素や各種発光体などを使い、光ファイバー型応力センサーなどへの応用検討および初期的な原理実証を行った。

Research Products

• [Int'l Joint Research] バスク大学(スペイン)
• [Presentation] Strain sensing using radiative emission-absorption mechanism of doped polymeric optical fiber (2019)
  • Author(s): R. Furukawa, S. Kamimura, C. Hirose, T. Sassa, and N. Fukuda
  • Organizer: SPIE Photonics West 2019
  • Int'l Joint Research / Invited
• [Presentation] Sensitivity Control of Dye-Doped Polymeric Fiber-Optic Strain Sensor Using Radiative Emission-Absorption Mechanism (2018)
  • Author(s): Rei Furukawa and So Kamimura
  • Organizer: 233rd ECS Meeting
  • Int'l Joint Research
• [Presentation] Waveguiding analysis of birefringence-reduced polymeric optical fiber using dichroic dye (2018)
  • Author(s): Takamichi Tozaki, Rei Furukawa, Daichi Mizorogi, Kentaro Yano
  • Organizer: The 7th Asia-Pacific Optical Sensors Conference
  • Int'l Joint Research
• [Presentation] Analysis on Cladding Intensity of Dye-doped Polymeric Fiber-Optic Strain Sensor for Visual Detection of Strain (2018)
  • Author(s): Rei Furukawa and So Kamimura
  • Organizer: Advanced Photonics 2018 Congress
  • Int'l Joint Research
• [Presentation] Stress Sensing Using Luminescent Dye-doped POFs (2018)
  • Author(s): Rei Furukawa and So Kamimura
  • Organizer: The 27th International Conference on Plastic Optical Fibers
  • Int'l Joint Research
• [Presentation] 二色素系ポリマー光ファイバーによる応力視認化へ向けた導波路構造最適化 (2018)
  • Author(s): 廣瀬 智絵、古川 怜
  • Organizer: 第67回高分子討論会
• [Presentation] 二色性色素添加光ファイバーの応力印加状態におけるスペクトル解析 (2018)
  • Author(s): 戸崎 隆道、古川 怜、矢野 賢太郎
  • Organizer: 第67回高分子討論会
• [Presentation] Waveguiding analysis of polymer optical fiber using dichroic dye (2017)
  • Author(s): Takamichi Tozaki, Rei Furukawa, Daichi Mizorogi, Kentaro Yano
  • Organizer: 第66回高分子討論会
• [Presentation] Terpolymer-based polymer optical fiber for multimodal polarization-maintaining (2017)
  • Author(s): Daichi Mizorogi, Eisuke Nihei, Rei Furukawa
  • Organizer: 第78回応用物理学会秋季学術講演会
• [Presentation] Copolymer-based polymer optical fiber for multimodal polarization-maintaining (2016)
  • Author(s): Daichi Mizorogi, Eisuke Nihei and Rei Furukawa
  • Organizer: The 11th SPSJ International Polymer Conference (IPC 2016)
  • Place of Presentation: 福岡コンベンションセンター（福岡県福岡市）
  • Year and Date: 2016-12-13
• [Presentation] 複屈折相殺効果のある三元共重合体を使ったポリマー光ファイバーの作製 (2016)
  • Author(s): 溝呂木 大地、二瓶 栄輔、古川 怜
  • Organizer: 応用物理学会秋季学術講演会
  • Place of Presentation: 朱鷺メッセ（新潟県新潟市）
  • Year and Date: 2016-09-13