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Nonlinear spatio-temporal photonicswith tera optical pulse

Research Project

Project/Area Number 11792005
Research Category

Grant-in-Aid for University and Society Collaboration

Allocation TypeSingle-year Grants
Research Field Applied optics/Quantum optical engineering
Research InstitutionOsaka University

Principal Investigator

ITOH Kazuyoshi  Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (80113520)

Co-Investigator(Kenkyū-buntansha) KONISHI Tsuyoshi  Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (90283720)
TANIDA Jun  Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (00183070)
ICHIOKA Yoshiki  Nara Nationl College of Technology, Principal, 校長 (30029003)
HANGYO Masanori  Reserch Center for Superconductor Photonics, Professor, 教授 (10144429)
WATANAE Wataru  Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (90314377)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 2001: ¥10,200,000 (Direct Cost: ¥10,200,000)
Keywordsultrashort pulse / nonlinear spatiao-temporal photonics / tera optical pulse / supercontinuum / micromachining / optical imformation processing / self-trapping / spectral tomography / 先端機能デバイス / 超高速情報処理 / 光スイッチ / フォトニックネットワーク / マイクロ・ナノデバイス / シリカガラス / 光導波路 / 分光的断層像 / 非線形空間フォトニクス / 白色コンティニュアム光 / 分光学的断層像
Research Abstract

The purpose of this research was to establish the optical technology of nonlinear spatio-temporal photonics with ultrashort laser pulses in collaboration with Venture Business Laboratory and COE Osaka. "Development of basic tera optical information technologies" The results obtained in the research term are listed below.
Induction of refractive index change by self-trapped filaments
We induced the refractive index change by using the filaments formed by femtosecond laser pulses (800nm) focused into silica glass. The diameter of the area of refractive index change was approximately 2 microns and the length was several ten toseveral hundred mm. The maximum refractive index change was 0.01.
Optical seizing and mering of voids
We focused the ultrashort laser pulses by high-NA objectives and formed voids inside glass. We succeeded in moving the void by approximately 5 microns along the optical axis by repeating the irradiation of the ultrashort laser pulse and translation of the focusing lens. We also succeeded in merging the two voids into one.
Spectrotomography
We built a non-dispersive and a dispersive coherence spectrotomography systems that measure simultaneously the spatial and spectral information inside the object. The dispersive coherence spectrotomograpy system was evaluated by applying the system to small shrimps. We succeeded in obtaining clear spectrotomography image of the tail of shrimp.
Ultrafast spatio-temporal information processing
We demonstrate fundamental functions for ultrafast optical routing by using an elemental part of an ultrafast optical technique for conversion of time to two-dimensional space. A preliminary experimental result shows that recognition of header signals can be achieved at a rate of more than 600 Gbytes/s.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (29 results)

All Other

All Publications (29 results)

  • [Publications] Yan Li: "Formation of permanent gratings inside glass with femtosecond laser pulses"Applied Physics Letters. 80,9. 1508-1510 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yan Li: "Three-dimensional hole drilling of silica glass from rear surface with femtosecond laser pulses"Optics Letters. 26,23. 1912-1914 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kazuhiro Yamada: "In situ observation of photoinduced refractive index changes in filaments formed in glasses"Optics Letters. 26,1. 19-21 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Wataru Watanabe: "Optical seizing and merging of voids in silica glass with infrared femtosecond laser pulses"Optics Letters. 25,22. 1669-1671 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Wataru Watanabe: "Spatial coherence of supercontinuum emitted from multiple filaments"Japanese Journal of Applied Physics. 40,2A. 592-595 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tsuyoshi Konishi: "Fundamental functions for ultrafast optical routing by temporal frequency-to-space conversion"Optics Letters. 26,18. 1445-1447 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yan Li, Kazuyoshi Itoh, Wataru Watanabe, Kazuhiro Yamada, Daisuke Kuroda, Junji Nishii and Yongyuan Jiang: "Three-dimensional hole drilling of silica glass from rear surface with femlosecond laser pulses"Opt. Lett.. Vol.26,No.23. 1912-1914 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yan Li, Wataru Watanabe, Kazuhiro Yamada, Taishi Shinagawa and Kazuyoshi Itoh, Junji Nishii and Yongyuan Jiang: "Formation of permanet gratings inside glass with femtosecond laser pulses"Appl. Phys. Lett.. Vol.80,No.9. 1508-1510 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kazuhiro Yamada, Wataru Watanabe, Tadamasa Toma, Junji Nishii and Kazuyoshi Itoh: "In site observation of photoinduced refractive-index changes in filaments formed in glasses by femtosecend laser pulses"Opt. Lett.. Vol.26,No.1. 19-21 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Wataru Watanabe, Tadamasa Toma, Kazuhiro Yamada, Junji Nishii, Ken- ichi Hayashi and Kazuyoshi Itoh: "Optical seizing and merging of voids in silica glass with infrared femtosecond laser pulses"Opt. Lett.. Vol.25,No.22. 1669-1671 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Wataru Watanabe and Kazuyoshi Itoh: "Spatial coherence of supercontinuum emitted from multiple filaments"Jpn. J. Appl. Phys.. Vol.40,Part 1,No.2A. 592-595 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tsuyoshi Konishi, Takashi Kotanigawa, Kazunori Tanimura, Hideaki Furukawa, Yoshinori Oshita, Yoshiki Ichioka: "Fundamental functions for ultrafast optical routing by temporal frequency-to-space conversion"Optics Letters. Vol.26,No.18. 1445-1447 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yan Li et al.: "Three-dimensional hole drilling of silica glass from rear surface with femtosecond laser pulses"Optics Letters. 26・23. 1912-1914 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yan Li et al.: "Formation of permanent gratings inside glass with femtosecond laser pulses"Appl. Phys. Lett.. 1508-1510 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Konishi et al.: "Fundamental functions for ultrafast optical routing by temporal frequency-to-space conversion"Optics Letters. 26・18. 1445-1447 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Konishi et al.: "Direct time-space conversion of ultra-fast pulses based on interferometric time-of-flight cross correlation using a fast optical addressable spatial light modulator"OPT QUANT ELECTRON. 33・7-10. 1063-1067 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Wataru Watanabe et al.: "Optical seizing and merging of voids in sillca glass with infrared femtosecond laser pulses"Optics Letters. 25・22. 1669-1671 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kazuhiro Yamada et al.: "In situ observation of photoinduced refractive index changes in filaments formed in glasses by femtosecond laser pulses"Optics Letters. 26・1. 19-21 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 伊東一良,渡辺歴: "広帯域高輝度光源による低コヒーレンス干渉計"光学. 29・11. 608-614 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] W.Yu et al.: "Fabrication of multilevel phase computer-generated hologram elements based on effective medium theory"Applied Optics. 39. 3531-3526 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Toru Sasaki et al.: "Stream cipher based on pseudorandom number generation with optical affine transformation"Applied Optics. 39・14. 2340-2346 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Keiichiro Kagawa et al.: "Optoelectronic parallel-matching architecture : architecture description, performance estimation, and prototype demonstration"Applied Optics. 40・2. 283-298 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kazuyoshi Itoh: "Fabrication of small Bragg reflectors in glass with refractive index change induced by ultrashort laser pulses"Proceedings of SPIE. 3801. 158-168 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tadamasa Toma: "Estimation of the refractive index change in glass induced by femtosecond laser pulses"Optical Review. 7・1. 14-17 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Jun Tanida: "Performance evaluation of optoelectronic processing systems based on device area resources"Optics Communications. 177. 45-51 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tsuyoshi Konishi: "Ultrafast image transmission by optical time-to ?two-dimensional-space-to-time-to-two-dimensional-space conversion"Journal of Optical Society of America A. 16. 1076-1088 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 渡辺歴: "干渉分光トモグラフィー"O plus E. 21・7. 857-862 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Wataru Watanabe: "Coherent array of white-light continuum generated by microlens array"Optical Review. 6・3. 167-172 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Osamu Matoba: "Photorefractive Optics : Materials, Properties and Applications"Academic Press. (2000)

    • Related Report
      1999 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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