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1993 Fiscal Year Final Research Report Summary

RESEARCH ON INTEGRATED SUPER-RESOLUTION READOUT DEVICES FOR HIGH-DENSITY OPTICAL MEMORY

Research Project

Project/Area Number 04452203
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 電子機器工学
Research InstitutionOsaka University

Principal Investigator

NISHIHARA Hiroshi  Osaka University, Faculty Engineering, Professor, 工学部, 教授 (00029018)

Co-Investigator(Kenkyū-buntansha) URA Shogo  Osaka University, Faculty Engineering, Res.Assoc., 工学部, 助手 (10193955)
SUHARA Toshiaki  Osaka University, Faculty Engineering, Assoc.Prof., 工学部, 助教授 (90116054)
HARUNA Masamitsu  Osaka University, Faculty Engineering, Assoc.Prof., 工学部, 助教授 (20029333)
Project Period (FY) 1992 – 1993
KeywordsOptical Memory / Super Resolution / Integrated Optics / Optical Disc
Research Abstract

This project aimed at studying the possibility of implementing high-performance integrated-optic readout devices for future high-density optical memory systems based upon the super resolution technique. The obtained results are summarized as follows :
1. Theoretical analysis was made on super-resolution readout by integrated-optic pickup devices.
2. The theoretical performances and optimized device parameters were clarified.
3. Possibility of super resolution in parallel data pickup device was theoretically discussed.
4. A prototype pickup device was fabricated and the readout characteristics were examined.
5. Integrated optic implementation of confocal scanning microscope was proposed, and the confocal readout characteristics related to the super-resolution are experimentally demonstrated.
6. Theoretical analysis was made on various types of waveguide SHG devices for application to optical memory. A LiNbO_3 waveguide quasi phase matched SHG device was fabricated and a high quality output spot and a high normalized efficiency was demonstrated.
7. A focus intensity profile modulator using electrooptic polymer waveguide was proposed and the possibility was experimentally demonstrated.
8. Grating components for future monolithic integration with laser diode in AlGaAs waveguide was designed and fabricated, and the feasibility was demonstrated.

  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] T.Suhara H.Nishihara: "Theoretical analysis of superresolution readout of disc data by semiconfocal pickup heads" Jpn.J.Appl.Phys.31. 534-541 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Nishihara,T.Suhara,S.Ura: "Integrated-optic disc pickups" Proc.SPIE. 1663. 26-36 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 栖原敏明,岡田訓明,河村政宏,西原浩: "光源分離型光ディスクピックアップ" 光メモリシンポジウム論文集. 109-110 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 栖原敏明 西原浩: "光ピックアップヘッドにおける超分解能の可能性" 光学. 21. 442-450 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Suhara,K.Okada,T.Suso,H.Nishihara: "Focusing grating coupler in AlGaAs optical waveguide" IEEE Photonics Tech.Lett.4. 903-905 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Suhara,T.Morimoto,H.Nishihara: "General coupled-mode analysis of Cereukov-radiation-type second-harmonic generation in channel and fiber waveguides" IEEE J Quantum Electron. 29. 525-537 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 栖原敏明.西原浩: "疑似位相整合による導波型SHG素子" 電子情報通信学会誌. 76. 597-601 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Nishihara,T.Suhara,S.Ura: "Integrated-optic disc pickup devices" Congress of International Commission for Optics. ICO'93. 228-232 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Nishihara,T.Suhara,S.Ura: "Integrated-optic disc pickup devices" Proc.SPIE. 1983. 228-232 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Sheard,T.Suhara,H.Nishihara: "Integrated-optic implementation of a confocal scanning optical microscope" J.Lightwave Tech.11. 1400-1403 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 栖原敏明,西原浩: "LiNbO_3疑似位相整合SHGデバイス" レーザー研究. 21. 1097-1105 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Ura,T.Kimura,T.Suhara,H.Nishihara: "An integrated-optic device using electrooptic polymer on Si substrate for modulating focus spot intensity distribution" IEEE Photon.Tech.Lett.5. 1291-1293 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Nishihara,M.Haruna,T.Suhara: "Electro-Optics Handbook" McGraw-Hill, 500(39) (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Suhara, H.Nishihara: "Theoretical analysis of super-resolution readout of disc deta by semiconfocal pickup heads" Jpn.J.Appl.Phys.31. 534-541 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nishihara, T.Suhara, S.Ura: "Integrated-optic disc pickups" Proc.SPIE. 1663. 26-36 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, K.Okada, M.Kawamura, H.Nishihara: "Integrated-optic disc pickup using fiber-linked light source" Optical Memory Symp.109-110 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, H.Nishihara: "Possibility of super resolution readout in optical pickup heads" Jpn.J.Opt.21. 442-450 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, K.Okada, T.Saso, H.Nishihara: "Focusing grating couple in AlGaAs optical waveguide" IEEE Photon.Tech.Lett.4. 903-905 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, T.Morimoto, H.Nishihara: "General coupled-mode analysis of Cerenkov-radiation-type second-harmonic generation in channel and fiber waveguides" IEEE J.Quantum Electron.29. 525-537 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, H.Nishihara: "Waveguide SHG devices with quasi-phase matching" Proc.IEICE. 76. 597-601 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nishihara, T.Suhara, S.Ura: "Integrated-optic disc pickup devicess" Cong.Int.Comm.Opt.ICO'93. 228-232 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nishihara, T.Suhara, S.Ura: "Integrated-optic disc pickup devicess" Proc.SPIE. 1983. 228-232 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Sheard, T.Suhara, H.Nishihara: "Integratd-optic implementation of a confocal scanning optical microscope" J.Lightwave Tech.11. 1400-1403 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Suhara, H.Nishihara: "LiNbO_3 quasi phase matched SHG devices" Rev.Laser Eng.21. 1097-1105 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Ura, T.Kimura, T.Suhara, H.Nishihara: "An integrated-optic device using electrooptic polymer on Si substrate for modulating focus spot intensity distribution" IEEE Photon.Tech.Left.5. 1291-1293 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Nishihara, M.Haruna, T.Suhara: "Electro-Optics Handbook" McGraw-Hill. (1993)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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