• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Waveguide visible lasers with tailored clad shapes directly drawn by femtosecond laser pulses

Research Project

Project/Area Number 24656055
Research Category

Grant-in-Aid for Challenging Exploratory Research

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

Principal Investigator

FUMIHIKO Kannari  慶應義塾大学, 理工学部, 教授 (40204804)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsレーザ描画導波路 / 導波路レーザ / 可視域レーザ / フェムト秒レーザ加工 / 時空間集光 / レーザー描画導波路 / 導波路レーザー / 可視域レーザー / フェムト秒レーザー加工
Research Abstract

When persistent refractive index change induced in the inside of transparent bulk materials by multi-photon absorption at intense femtosecond laser irradiation is used for a waveguide core, non-uniform refractive index change causes propagation loss and thus this scheme is not applicable for efficient waveguide laser fabrication. Since fluoride glasses exhibit negative refractive index change at femtosecond laser irradiation, we proposed direct clad drawing with femtosecond laser pulses. A novel simultaneous spatial and temporal focusing (SSTF) scheme was employed to confine laser excitation into smaller volumes especially along the depth direction. Clad drawn waveguides fabricated in Pr:ZBLAN glass successfully worked as a laser waveguide with a transmission loss of 0.58dB/m at 633 nm. However, since the refractive index change was smaller than we expected, the present waveguide NA was limited to 0.015.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (25 results)

All 2014 2013 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (18 results) (of which Invited: 1 results) Remarks (3 results)

  • [Journal Article] InGaN diode pumped actively Q-switched intracavity frequency doubling Pr : LiYF4 261 nm laser2014

    • Author(s)
      Junichiro Kojou, Ryo Abe, Ryouske Kariyama, Hiroki Tanaka, Akira Sakurai, Yojiro Watanabe, and Fumihiko Kannari
    • Journal Title

      Appl. Opt

      Volume: Vol.53 Pages: 2030-2036

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] InGaN diode pumped actively Q-switched intracavity frequency doubling Pr:LiYF4 261 nm laser2014

    • Author(s)
      Junichiro Kojou, Ryo Abe, Ryosuke Kariyama, Hiroki Tanaka, Akira Sakurai, Yojiro Watanabe, and Fumihiko Kannari
    • Journal Title

      Applied Optics

      Volume: 53 Pages: 2030-2036

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cr^<4+->doped Y3Al5O12 as a saturable absorber for a Q-switched and mode-locked 639-nm P^<3+->doped LiYF4 laser2013

    • Author(s)
      Ryo Abe, Junichiro Kojou, Kensuke Masuda, and Fumihiko Kannari
    • Journal Title

      Appl. Phys. Express

      Volume: Vol.6 Issue: 3 Pages: 032703-032703

    • DOI

      10.7567/apex.6.032703

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Phase locking in a Nd:YVO4 waveguide laser array using Talbot cavity2013

    • Author(s)
      Kenichi Hirosawa, Seiichi Kittaka, Yu Oishi, Fumihiko Kannari, and Takayuki Yanagisawa
    • Journal Title

      Optics Express

      Volume: 21 Issue: 21 Pages: 24952-24961

    • DOI

      10.1364/oe.21.024952

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Presentation] Direct writing of waveguides in Pr : ZBLAN glass with femtosecond laser pulses2014

    • Author(s)
      Y. Yamanaka, K. Hirosawa, and F. Kannari
    • Organizer
      The 3^<rd> Advanced Lasers and Photon Sources (ALPS'14)
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Final Research Report
  • [Presentation] Characteristics of a Talbot cavity for coherent combination of a laser-diode-array-pumped Nd : YVO_4 waveguide laser array2014

    • Author(s)
      K. Hirosawa, F. Kannari, and T. Yanagisawa
    • Organizer
      The 3^<rd> Advanced Lasers and Photon Sources (ALPS'14)
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Final Research Report
  • [Presentation] Using two-dimensional spatial and temporal focusing microscopy to increase the imaging depth and decrease the photobleaching probability2014

    • Author(s)
      Qiyuan Song, Aoi nakamura, Atsuo Isouchi, Kenichi Hirosawa, Keisuke Isobe, Katsumi Midorikawa, and Fumihiko Kannari
    • Organizer
      Biomedical Optics Topical Meeting
    • Place of Presentation
      Miami
    • Related Report
      2013 Final Research Report
  • [Presentation] Intracavity second harmonic generation of passively Q-switch modelocked Pr^<3+>-doped fluoreide lasers using Cr^<4+> : YAG crystal as a saturable absorber2014

    • Author(s)
      Hiroki Tanaka, Ryosuke Kariyama, Junichiro Kojou, and Fumihiko Kannari
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO) 2014
    • Place of Presentation
      San Jose, USA
    • Related Report
      2013 Final Research Report
  • [Presentation] Intracavity Second Harmonic Generation of Passively Q-switch Modelocked Pr3+-doped Fluoride Lasers using Cr4+:YAG crystal as a Saturable Absorber2014

    • Author(s)
      Hiroki Tanaka, Ryosuke Kariyama, Junichiro Kojou, and Fumihiko Kannari
    • Organizer
      Conference on Lasers and Electro-Optics 2014
    • Place of Presentation
      San Jose, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Using two-dimensional spatial and temporal focusing microscopy to increase the imaging depth and decrease the photobleaching probability2014

    • Author(s)
      Qiyuan Song, Aoi Nakamura, Atsuo Isouchi, Kenichi Hirosawa, Keisuke Isobe, Katsumi Midorikawa, and Fumihiko Kannari
    • Organizer
      Biomedical Optics Topical Meeting
    • Place of Presentation
      Miami, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Characteristics of a Talbot Cavity for Coherent Combination of a Laser-diode-array-pumped Nd:YVO4 Waveguide Laser Array2014

    • Author(s)
      K. Hirosawa, F. Kannari, and T. Yanagisawa
    • Organizer
      The 3rd Advanced Lasers and Photon Sources (ALPS' 14)
    • Place of Presentation
      Yokohama, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Direct Writing of Waveguides in Pr:ZBLAN Glass with Femtosecond Laser Pulses2014

    • Author(s)
      Y. Yamanaka, K. Hirosawa, and F. Kannari
    • Organizer
      The 3rd Advanced Lasers and Photon Sources (ALPS' 14)
    • Place of Presentation
      Yokohama, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Q-switched and mode-locked 639-nm Pr : YLF laser with Cr : YAG saturable absorber2013

    • Author(s)
      Ryo Abe, Junichiro Kojou, Kensuke Masuda, Kenichi Hirosawa, and Fumihiko Kannari
    • Organizer
      the CLEO/Europe-IQEC Conference
    • Place of Presentation
      Munich
    • Related Report
      2013 Final Research Report
  • [Presentation] Two-dimensional focusing of femtosecond pulses2013

    • Author(s)
      Qiyuan Song, Aoi Nakamura, Kenichi Hirosawa, and Fumihiko Kannari
    • Organizer
      The 4^<th> Shanghai-Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science
    • Place of Presentation
      Shanghai
    • Related Report
      2013 Final Research Report
  • [Presentation] Cr : YAG as a saturable absorber for Q-switched and mode-locked 639-nm Pr : YLF laser2013

    • Author(s)
      Ryo Abe, Junichiro Kojou, Kensuke Masuda, and Fumihiko Kannari
    • Organizer
      the 2^<nd> Advanced Lasers and Photon Sources (ALPS'13)
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Final Research Report
  • [Presentation] Intracavity second-harmonic generation at 261 nm of an actively Q-switched Pr : LiYF4 laser2013

    • Author(s)
      Junichiro Kojou, Ryo Abe, Akira Sakurai, and Fumihiko Kannari
    • Organizer
      the 2^<nd> Advanced Lasers and Photon Sources (ALPS'13)
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Final Research Report
  • [Presentation] Two-dimensional simultaneous spatial and temporal focusing of femtosecond pulses2013

    • Author(s)
      Qiyuan Song, Aoi Nakamura, Kenichi Hirosawa, and Fumihiko Kannari
    • Organizer
      OSA congress on Optics in the Life Sciences
    • Place of Presentation
      Hawaii
    • Related Report
      2013 Final Research Report
  • [Presentation] Q-Switched and Mode-Locked 639-nm Pr:YLF Laser with Cr :YAG Saturable Absorber2013

    • Author(s)
      Ryo Abe
    • Organizer
      the CLEO/Europe-IQEC Conference
    • Place of Presentation
      Munich, Germany
    • Related Report
      2012 Research-status Report
  • [Presentation] Cr:YAG as a saturable absorber for a Q-switched and mode-locked 639-nm Pr:YLF laser2013

    • Author(s)
      Ryo Abe
    • Organizer
      the 2nd Advanced Lasers and Photon Sources (ALPS '13)
    • Place of Presentation
      横浜
    • Related Report
      2012 Research-status Report
  • [Presentation] Intracavity second-harmonic generation at 261nm of an actively Q-switched Pr:LiYF4 laser2013

    • Author(s)
      Junichiro Kojou,
    • Organizer
      the 2nd Advanced Lasers and Photon Sources (ALPS '13)
    • Place of Presentation
      横浜
    • Related Report
      2012 Research-status Report
  • [Presentation] Two-dimensional Simultaneous Spatial and Temporal Focusing of femtosecond pulses2013

    • Author(s)
      Qiyuan Song
    • Organizer
      OSA congress on Optics in the Life Sciences
    • Place of Presentation
      Hawaii, USA
    • Related Report
      2012 Research-status Report
  • [Presentation] Two-dimensional Spatiotemporal Focusing of Femtosecond Pulses2013

    • Author(s)
      Qiyuan Song
    • Organizer
      The 4th Shangihai Tokyo Advanced Research Symposium on Ulterafast Intense Laser Science
    • Place of Presentation
      Shanghai, Chaina
    • Related Report
      2012 Research-status Report
    • Invited
  • [Remarks]

    • URL

      http://ekammac0.kami.elec.keio.ac.jp/report.html

    • Related Report
      2013 Final Research Report
  • [Remarks] 神成研究室ホームページ (アニュアルレポート)

    • URL

      http://ekmmac0.kami,elec.keio.ac.jp/report.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 慶應義塾大学理工学部神成研究室ホームページ,アニュアルレポート

    • URL

      http://www.kami.elec.keio.ac.jp/about/report/report2011.html

    • Related Report
      2012 Research-status Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi