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Study on blue light generation by nonlinear optical crystal KLN

Research Project

Project/Area Number 06452133
Research Category

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

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

Principal Investigator

SASAKI Takatomo  Osaka Univ., Electrical Eng., Professor, 工学部, 教授 (50029237)

Co-Investigator(Kenkyū-buntansha) MORI Yusuke  Osaka Univ., Electrical Eng., Res.Associate, 工学部, 助手 (90252618)
OHNISHI Norio  ETL,Mater.Sci.Div., Senior Scientist, 材料科学部, 通産技官
HIRAKI Akio  Osaka Univ., Electrical Eng., Professor, 工学部, 教授 (50029013)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,300,000 (Direct Cost: ¥6,300,000)
Fiscal Year 1995: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1994: ¥5,400,000 (Direct Cost: ¥5,400,000)
KeywordsKLN fiber / blue light / nonlinear optics / second harmonics generation / single crystal / uniformity / temperature acceptance / spectral bandwidth
Research Abstract

We have employed the micro-prlling down (mu-PD) method in order to overcome the difficulty in growing non-congruently melting KLN crystal of sufficient size and of reasonable umiformity of crystal composition. KLN could be formed as a small diameter fiber (200mum) with high growth rate (6mm/h) by mu-PD method. This system could make possible to grow non-congruently melting crystal with uniform conposition and high quality. Since the much smaller deviation from starting composition of the melt occurring in the growth of thinner fiber crystal, it is possible to maintain a certain composition in the solution during growth and to help in fabrication of uniform crystal in composition. Also, fewer thermal distortions and dislocations were introduced in the thinner fiber crystals. By using these fibers, we have observed blue light by frequency doubling of cw Ti : saphhire laser at RT.We have obtained 0.6mW blue output power from single pass SHG at an input power 700mW of cw Ti : Sapphire laser. The temperature and wavelength acceptances of the KLN fiber were 2.5゚C・cm and 0.4mm・cm at room temperature, respectively.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Yusuke Mori: "Growth of KLN fibers and its application for blue-violet light generation" Optical Review. 1. 241-242 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yusuke Mori: "Generation of blue light by using KLN crystal" Technical digest of compact blue-green lasers. 1. 52-54 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takatomo Sasaki: "Generation of blue light by using potassium lithium niobate crystal" Nonlinear Optics. 14. 291-299 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yusuke Mori, Takahiro Obana, Takatomo Sakaki, Masashi Yoshimura, Norio Ohnishi, Tsuguo Fukuda and Hiroyuki Tanaka: "Generation of blue light by using potassium lithium niobate crystal" Technical Digest of Compact Blue-Green Lasers. 1. 52-54 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yusuke Mori, Takatomo Sakaki, Takahiro Obana, Masashi Yoshimura, Norio Ohnishi, Tsuguo Fukuda: "Growth of KLN fiber crystals and its application for blue-violet light generation" Optical Review. 1. 241-242 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Takatomo Sakaki, Yusuke Mori, Takahiro Obana, Masashi Yoshimura, Norio Ohnishi, Tsuguo Fukuda: "Generation of blue light by using potassium lithium niobate crystal" Nonlinear Optics. 14. 291-299 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yusuke Mori: "Growth of KLN fibers and its application for blue-violet light generation" Optical Review. 1. 241-242 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yusuke Mori: "Generation of blue light by using KLN crystal" Technical digest of compact blue-green lasers. 1. 52-54 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takatomo Sasaki: "Generation of blue light by using potassium lithium niobate crystal" Nonlinear Optics. 14. 291-299 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yusuke Mori: "Grouth of KLN Fiber Crystals and Application for Blue-Viold Ligth Generation" Optical Revien. 1. 241-242 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yusuke Mori: "Generation of Blue Ligth by uing KLN crystal" Technical Digest of Compact Blue-Green Lasers. 1. 52-52 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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