Optical oupling device for realizing optical wiring using of UV-curable resin

• Project/Area Number: 15K06034
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Tokai University
• Principal Investigator: FUJIKAWA Chiemi 東海大学, 工学部, 教授 (70319375)
• Research Collaborator: MIKAMI Osamu
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 光配線 / 光硬化性樹脂 / 自己形成光導波路 / 多層化 / 樹脂マイクロレンズ / アレイ化 / 光接続 / 縦型光導波路 / マイクロレンズ / 自己形成導波路 / フォトマスク転写 / V溝

Outline of Final Research Achievements

Easy alignment and high coupling efficiency technologies are required to maintain high optical coupling efficiencies between planar surface devices such as vertical cavity surface emitting lasers (VCSELs) and photodiodes (PD) which renders the multi-channel waveguide approach to be quite practical. A unique combination of pillar and microlens has proposed to enable easy coupling between VCSEL layers and multi-layer/channel in optical printed wiring board. A number of uniform pillars having microlens on the top were fabricated on a substrate using UV curable resin by mask-transfer self-written waveguide (SWW) and dipping methods. Near field pattern measurements showed that uniform power was obtained from all top microlens of the 3x4 pillar array on a slide glass. Therefore, this unique combination of microlens on optical pillars are indeed anticipated to improve the coupling efficiency in optical interconnects.

Academic Significance and Societal Importance of the Research Achievements

プリント基板内での通信を光のみで行う光インターコネクト技術は，メタリック配線におけるボトルネック問題を解決できると期待されることから，近年，大きな注目を集めている．単層での多チャネル配線の先の多層光プリント配線基板を想定し，多層化・アレイ化・などへの対応が要求される．垂直共振器型面発光レーザなどの発光素子と受光素子との間の高い光結合効率を維持するためには，光独特の課題である容易な位置合わせおよび高い結合効率をもつ光接続技術が必要とされる．本研究で提案した樹脂マイクロレンズ付きの縦型光導波路は，出射光の拡がり角を光接続する距離に応じて制御可能であることから，上記の課題を解決可能と期待できる．

Research Products

• [Int'l Joint Research] Universiti Teknologi Malaysia(マレーシア)
• [Int'l Joint Research] マレーシア工科大学(マレーシア)
• [Int'l Joint Research] マレーシア工科大学(マレーシア)
• [Journal Article] Shape Control of UV-Curable Resin Microlens for Optical Interconnection (2019)
  • Author(s): Chiemi Fujikawa, Osamu Mikami
  • Journal Title: Plasma Application and Hybrid Functionally Materials Volume: 28 Pages: 45-46
• [Journal Article] Optical coupling devices fabricated using UV-curable resin for board level optical interconnect (2018)
  • Author(s): Chiemi Fujikawa, Osamu Mikami, Nurul Atiqah Baharudin, Yuzafirah Yaacob, Amalina Athira Ibrahim, Sumiaty Ambran
  • Journal Title: Proc. SPIE Volume: 10681 Pages: 1068118-1068118
  • DOI: 10.1117/12.2307239
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A V-Shape Optical Pin Interface for Board Level Optical Interconnect (2018)
  • Author(s): Nur Najahatul Huda Saris, Osamu Mikami, Azura Hamzah, Sumiaty Ambran, Chiemi Fujikawa
  • Journal Title: Photonics Letters of Poland Journal Volume: 10 Pages: 20-22
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Microlens fabricated on fiber tip using UV-curable resin for optical interconnect (2017)
  • Author(s): Yaacob Yuzafirah、Mikami Osamu、Ambran Sumiaty、Fujikawa Chiemi、Nakajima Satoru
  • Journal Title: IEEE Xplore Volume: 11 Pages: 1-2
  • DOI: 10.1109/oecc.2017.8114877
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Optical pin interface for 90-deg optical path conversion coupling to Printed Wiring Board (2016)
  • Author(s): Osamu Mikami ; Yuzafirah Yaacob ; Nurul Atiqah Baharudin ; Sumiaty Ambran ; Chiemi Fujikawa
  • Journal Title: 2016 IEEE Region 10 Conference (TENCON) Volume: － Pages: 2278-2280
  • DOI: 10.1109/tencon.2016.7848434
  • Peer Reviewed / Int'l Joint Research
• [Presentation] 樹脂マイクロレンズ作製における形状再現性の向上及び形状制御の検討 (2019)
  • Author(s): 桑原大洋, 藤川知栄美, 三上修
  • Organizer: 第33回 エレクトロニクス実装学会 春季講演大会
• [Presentation] UV-Curable Resin Microlens on Optical Pillars for Optical Interconnect (2018)
  • Author(s): Chiemi Fujikawa, Osamu Mikami, Ryohei Sugiyama, Amalina Athira Ibrahim, Nurul Atiqah Baharudin, Sumiaty Ambran, Fauzan Ahmad
  • Organizer: 23rd MICROOPTICS CONFERENCE (MOC 2018)
  • Int'l Joint Research
• [Presentation] 光ピン端面における樹脂マイクロレンズの作製 (2018)
  • Author(s): 杉山凌平, Athira Ibrahim Amalina, 藤川 知栄美, Nurul Atiqah Baharudin, 三上修
  • Organizer: 第32回 エレクトロニクス実装学会春季講演大会
• [Presentation] Polymer microlens fabricated on fiber tip for optical interconnect (2017)
  • Author(s): Y. Yaacob, O. Mikam, C. Fujikawa, S. Nakajima, S. Ambran
  • Organizer: 2017 IOP Conf. Ser.: Mater. Sci. Eng.
  • Int'l Joint Research
• [Presentation] Spot Size Converter Using Mask-Transfer Seif-Written Technology for Optical Intercconection (2016)
  • Author(s): Nurul Atiqah Bahardin, Chiemi Fujikawa, Osame MitomiI, Shonosuke Taguchi, Osame Mikami, Sumiaty Ambran
  • Organizer: 日本光学会 コンテンポラリーオプティックス研究会
  • Place of Presentation: 電気通信大学
  • Year and Date: 2016-10-05
• [Presentation] Fabrication of Micro Lens for Optical Printed Wiring Board (2016)
  • Author(s): Yuzafirah Yaacob, Yuto lshi, Chiemi Fujikawa, Osamu Mikami, Sumiaty Ambran
  • Organizer: 日本光学会 コンテンポラリーオプティックス研究会
  • Place of Presentation: 電気通信大学
  • Year and Date: 2016-10-05
• [Presentation] Self-Written Waveguide (SWW) Optical Pin for High Optical Coupling in Multi-layer Printed Wiring Board (2016)
  • Author(s): Nurul Atiqah Baharudin, Sumiaty Ambran, Osamu Mikami, Chiemi Fujikawa
  • Organizer: The 2016 IEEE 6th International Conference on Photonics
  • Place of Presentation: Hilton Hotel, Sarawak, MALAYSIA
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] Optical Coupling for Multi-layered Optical Printed Wiring Board Using Micro Lens Array (2016)
  • Author(s): Yuzafirah Yaacob, Nurul Atiqah Baharudin, Osamu Mikami, Sumiaty Ambran, Chiemi Fujikawa
  • Organizer: The 2016 IEEE 6th International Conference on Photonics
  • Place of Presentation: Hilton Hotel, Sarawak, MALAYSIA
  • Year and Date: 2016-03-14
  • Int'l Joint Research
• [Presentation] 光通信用機能性光学素子の研究・開発 (2015)
  • Author(s): 藤川知栄美
  • Organizer: フォトニクス研究会 第2回研究会
  • Place of Presentation: 東海大学，平塚市
  • Year and Date: 2015-11-26
• [Presentation] Optical Coupling For Multi-layer Printed Wiring Board By Self-Written Waveguide (2015)
  • Author(s): Nurul Atiqah Baharudin, Sumiaty Ambran, Osamu Mikami, Chiemi Fujikawa
  • Organizer: Malaysia-Japan Joint International Conference 2015
  • Place of Presentation: 山口大学，宇部市
  • Year and Date: 2015-11-13