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Optical delivery system for painless laser dentistry

Research Project

Project/Area Number 07558120
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Biomedical engineering/Biological material science
Research InstitutionTohoku University

Principal Investigator

MIYAGI Mitsunobu  Tohoku University Grad.School of Elect.Commun., Professor, 大学院・工学研究科, 教授 (90006263)

Co-Investigator(Kenkyū-buntansha) HONGO Akihito  Hitachi Cable, ARC,Research Group Leader, アドバンスリサーチセンタ, 研究リーダー
KATO Yuji  Hokkaido Univ., Grad.School of Eng., Res.Assoc., 大学院工学研究科, 助手 (50261582)
HARA Hiroaki  Tohoku University Grad.School of Info.Sciences, Assoc.Prof., 大学院・工学研究科, 助教授 (60005296)
MATSUURA Yuji  Tohoku University Grad.School of Elect.Commun, Assoc.Prof., 大学院・工学研究科, 助教授 (10241530)
本郷 晃人  日立電線, アドバンスリサーチセンター, 研究リーダー
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥18,400,000 (Direct Cost: ¥18,400,000)
Fiscal Year 1997: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1996: ¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1995: ¥9,100,000 (Direct Cost: ¥9,100,000)
KeywordsHollow waveguides / Infrared laser / Biomedical optics / Infrared fiber / dental lasers / 誘電体内装中空導波路 / 中空導波路 / 赤外レーサー / エルビウムヤグレーザー / 歯科治療 / 有機樹脂 / 誘導体内装中空導波路 / 赤外レーザー / エルビウム・ヤグレーザー
Research Abstract

The purpose of this research is development of optical delivery systems for dentistry which enables painless dental treatment. The system utilizes Er : YAG laser as the light source and hollow waveguides as the beam delivery medium. In this research, in addition to flexible waveguides, fixedbent waveguides, visible light delivery systems, and beam launching couplers are studied for development of total laser systems. The hollow waveguides that is the basis of this research deliver high-powered, infrared laser light and the waveguides are robust and stable for long term.
The following is the main result of this research :
1.Loss reduction of hollow glass waveguides for Er : YAG laser light
Hollow glass waveguides are fabricated by a liquid-phase deposition technique using mirror plating method and polymer liquid coating method. The waveguides consist of a silica capillary tube, a silver layr on the inside of the tube, and a polyimide thin film on the further inside of the silver layr. The waveguides withstand more tna 100mJ of input energy and also has a low transmission loss less than 0.3dB/m.
2.Development of additional devices fro hollow wveguides
A lensed-taper, launching coupler for hollow waveguides is newly proposed and developed. The coupler enhance the coupling between the input laser beam and the hollow waveguides. In addition, a beam homogenizer for hollow waveguides is develped by utilizing a silver-halide, infrared fiber.
3.Biological test of the beam delivery system for Er : YAG laser
Under the corroboration with a manufacturer of dental systems, biological tests using a polyimidecoated, hollow glass waveguide were performed and obtained a good result of painless treatment.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (59 results)

All Other

All Publications (59 results)

  • [Publications] Y.Kato: "loss characteristics of polyimide-coated silver hollow glass waveguides for the infrared" Electron.Lett. 30・20. 31-32 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Takatani: "Theoretical and experimental invertigations of loss behavior in the infrared in quartz hollow waveguides with rough inner surfaces" Appl.Opt. 34・12. 4352-4357 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Watanabe: "Transmission of l.6 J Er.YAG laser light by ZnS-coated silver hollow waveguides" Opt.Laser Technol.27・27. 389-391 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Osawa: "Fabrication of fluorocarbon polymer-coated silver hollow-glass waveguides for the infrared by the liquid-phasse coating method" Opt.Laser.Technol.27. 393-396 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Saito: "Optical constants of polymer coatings in the infrared" Infared Phys.35. 1125-1129 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 宮城 光信: "赤外域レーザー用中空導波路の開発" OPTRONICS. 1. 1116-1120 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] A.Hongo: "Fabrication of dielectric-coated glass waveguides for the infrared" Proc.SPIE. 2677. 55-63 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Transmission properties of fluorocarbon polymer-coated silver hollow glass waveguide with tapered section for Er:YAG laser" Proc.SPIE. 2928. 58-65 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Characteization of copper waveguides for mid-ir radiation with applications in medicine" Proc.SPIE. 2928. 39-45 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Fabrication of diekectrilc-coated silver hollow nickel waveguide with multiple inner dielectric layers for Er:TAG laser light" Proc.SPIE. 2928. 19-27 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Watanabe: "Fabrication of silver hollow nickel waveguide with multiple inner dielectric layers by the outer-coating method" Opt.Lett.21. 1670-1672 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Simultaneous measurement of optical of dispersive material at visible and infrared wavelenghts" Appl Opt.36. 877-884 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: "Hollow fiber beam delivery systems" Proc.SPIE. 3092. 120-125 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Hiraga: "Lensed taper coupler for hollow waveguides" Proc.SPIE. 2977. 47-50 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Fabrication of robust hollow waveguides devices for ErYAG laser light" Proc.SPIE. 2977. 36-40 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: "Thickness and uniformity of fluorocabon polymer fikm dynamically coated inside silver hollow glass waveguide" Appl.Opt.36. 2886-2892 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: "Silver halide fiber as a beam homogenizer for infrared hollow waveguides" Opt.Lett.22. 1308-1310 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: "Lensed-taper launching coupler for small-bore,infrared hollow fibers" Appl.Opt.36. 7818-7821 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Kato: ""Loss characteristics of polyimide-coated silver hollow glass waveguides for the infrared"" Electron.Lett.31. 31-32 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Takatani: ""Theoretical and experimental investigations of loss hehavior in the infrared in quartz hollow waveguides with rough inner surfaces"" Appl.Opt.34. 4352-4357 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Watanabe: ""Transmission of 1.6J Er : YAG laser light by ZnS-coated silver hollow waveguides"" Opt.Laser Technol.27. 389-391 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Osawa: ""Fabrication of fluorocarbon polymer-coated silver hollow-glass waveguides for the infrared by the liquid-phase coating method"" Opt.Laser Technol.27. 393-396 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Saito: ""Optical constants of polymer coatings in the infrared"" Infrared Phys.Technol.35. 1125-1129 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] M.Miyagi: ""Development of hollow waveguides for Infrared lasers"" OPTRONICS. 1. 1116-1120 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] A.Hongo: ""Fabrication of dielectric-coated silver hollow glass waveguides for the infrared"" Proc.SPIE. 2677. 55-63 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang.: ""Transmission properties of fluorocarbon polymer-coated silver hollow glass waveguide with tapered section for Er : YAG laser"" Proc.SPIE. 2928. 58-65 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang: ""Characterization of copper waveguides for mid-ir radiation with applications in medicine"" Proc.SPIE. 2928. 39-45 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang: ""Fabrication of dielectric-coated silver hollow nickel waveguide with multiple inner dielectric layrs for Er : YAG laser light"" Proc.SPIE. 2928. 19-27 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Watanabe: ""Fabrication of silver hollow nickel waveguides with multiple inner dielectric layrs by the outer-coating method"" Opt.Lett.21. 1670-1672 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang: ""Simultaneous measurement of optical constants of dispersive material at visible and infrared wavelengths"" Appl Opt.36. 877-884 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: ""Hollow fiber beam delivery systems"" Proc.SPIE. 3092. 120-125 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Hiraga: ""Lensed taper coupler for hollow waveguides"" Proc.SPIE. 2977. 47-50 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang: ""Fabrication of robust hollow waveguides devices for Er : YAG laser light"" Proc.SPIE. 2977. 36-40 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Wang: ""Thickness and uniformity of fluorocarbon polymer film dynamically coated inside silver hollow glass waveguide"" Appl.Opt.36. 2886-2892 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: ""Silver halide fiber tip as a beam homogenizer for infrared hollow waveguides"" Opt.Lett.22. 1308-1310 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Y.Matsuura: ""Lensed-taper launching coupler for small-bore, infrared hollow fibers"" Appl.Opt.36. 7818-7821 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] You Wang: "Simultaneous measurement of optical constans of dispersive material at visible and infrared wavelengths" Appl.Opt.36. 877-884 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuji Matsuura: "Hollow fiber beam delivery systems" Proc.Soc.Photo-Opt.Instrum.Eng.3092. 120-125 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hajime Hiraga: "Lensed taper coupler for hollow waveguides" Proc.Soc.Photo-Opt.Instrum.Eng.2977. 47-50 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] You Wang: "Fabrication of robust hollow waveguides devices for Er:YAG laser light" Proc.Soc.Photo-Opt.Instrum.Eng.2977. 36-40 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] You Wang: "Thickness and uniformity of fluorocarbon polymer film dynamically coated inside silver hollow glass waveguides" Appl.Opt.36. 2886-2892 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuji Matsuura: "Silver halide fiber tip as a beam homogenizer for infared hollow waveguides" Opt.Lett.22. 1308-1310 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yuji Matsuura: "Lensed-taper Iaunching coupler for small-bore,infrared hollow fibers" App.Opt.36. 7818-7821 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yukio Abe: "Polymer-coated hollow fiber for CO2 laser delivery" Opt.Lett.23. 89-90 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 宮城光信: "赤外域レーザー用中空導波路の開発" OPTRONICS. 1. 116-120 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Akihito Hongo: "Fabrication of dielectric-coated silver hollow glass waveguides for the infrared" Proc.Soc.Photo-Opt.Instrum.Eng.2677. 55-63 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] You Wang: "Transmission properties of fluorocarbon polymer-coated silver hollow glass waveguide with tapered section for Er : YAG laser" Proc.Soc.Photo-Opt.Instrum.Eng.2928. 58-63 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] You Wang: "Characterization of copper waveguides for mid-irradiation with applications in medicine" Proc.Soc.Photo-Opt.Instrum.Eng.2928. 39-45 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] You Wang: "Fabrication of dielectric-coated silver hollow nickel waveguide with multiple inner dielectric layers for Er : YAG laser light" Proc.Soc.Photo-Opt.Instrum.Eng.2928. 19-27 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takafumi Watanabe: "Fabrication of silver hollow nickel waveguides with multiple inner dielectric layers by the outer-coating method" Opt.Lett.21, 20. 1670-1672 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] You Wang: "Simultaneous measrement of optical constants of dispersive material at visible and infrared wavelengths" Appl.Opt.36, 1 (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yukio Abe: "Simplified technique of fabricating dielectric-coated silver hollow nickel waveguides by the outer-coating method" Opt.Laser Technol.28 (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] You Wang: "Thickness and uniformity of fluorocarbon polymer film dynamically coated inside silver hollow glass waveguides" Appl.Opt.28 (in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y. Kato: "Loss characteristics of polyimide-coated silver hollow glass waveguides for the infrared" Electron. Lett.31. 31-32 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K. Takatani: "Theoretical and experimental investigations of loss behavior in the infrared in quartz hollow waveguide with rough surfaces" Appl. Opt.34. 4352-4357 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Watanabe: "Transmission of 1.6 J Er: YAG laser light by ZnS-coated silver hollow waveguides" Opt. & Laser Technol.27. 389-391 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Osawa: "Fabrication of fluorocarbon polymer-coated silver hollow glass waveguides for the infraed by the liquid-phase method" Opt. & Laser Technol.27. 393-396 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Saito.: "Optical constants of polymer coatings in the infrared" Infrared physics & Technol.36. 1125-1129 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 宮城 光信: "赤外域レーザー用中空導波路の開発" OPTRONICS. 116-120 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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