Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices(<Feature>Glass and Ceramic Materials for Photonics)

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概要

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• We examined the crystallization behavior of double clad fiber composed by BaO-TiO_2-GeO_2-SiO_2 based glasses in detail. Formation of needle-like fresnoite-type Ba_2Ti (Ge, Si)_2O_8 were observed at the interface between the first and second clad. In addition, we employed the two-step heat-treatment (i.e., 728℃, 20h+749℃, 1h) in fabrication of the crystallized fiber in order to obtain the highly-oriented fresnoite phase in the fiber structure. The first treating temperature, 728℃, which gives the maximum nucleation rate, was determined by differential thermal analysis. It was demonstrated that the two-step heat-treatment was effective for improvement of the orientation of fresnoite-type phase in the first clad of the double clad fiber.

• 社団法人日本セラミックス協会の論文
• 2008-10-01

著者

• TAKAHASHI YOSHIHIRO

  Department of Pediatrics, Odate Municipal General Hospital

• MASAI Hirokazu

  Department of Applied Physics, Tohoku University

• FUJIWARA Takumi

  Department of Applied Physics, Tohoku University

• SUGIMOTO Naoki

  Research Center, Asahi Glass Co., Ltd.

• Fujiwara Tamiya

  Deparment Of Electrical And Electronic Engineering Iwate University

• TAKAHASHI Yoshikazu

  Ibaraki Prefectural University of Health Sciences

• Takahashi Y

  Ulvac Japan Ltd. Ibaraki Jpn

• Takahashi Yoshihiro

  Department Of Applied Physics School Of Engineering Tohoku University

• Masai Hirokazu

  Department Of Applied Physics School Of Engineering Tohoku University

• IWAFUCHI Naoki

  Department of Applied Physics, Tohoku University

• Fujiwara T

  Department Of Electrical Engineering Faculty Of Engineering Iwate University

• Sugimoto Naoki

  Research Center Asahi Glass Co. Ltd.

• Fujiwara T

  Department Of Applied Physics School Of Engineering Tohoku University

• OHARA Seiki

  Department of Applied Physics, Tohoku University

• KONDO Yuki

  Research Center, Asahi glass Co., Ltd.

• Fujiwara T

  Toyota Technological Inst. Nagoya Jpn

• Takahashi Y

  Tanaka Solid Junction Project Erato Japan Science And Research Corporation

• Fujiwara Takumi

  Department Of Applied Physics School Of Engineering Tohoku University

• Takahashi Yoichi

  Department Of Nuclear Engineering Faculty Of Engineering University Of Tokyo

• Takahashi Yukihiro

  Central Research Laboratory Matsushita Electric Industrial Co. Ltd.

• Takahashi Y

  Department Of Applied Physics School Of Engineering Tohoku University

• Takahashi Yoshinori

  Division Of Electrical Electronic And Information Engineering Osaka University

• Kondo Yuki

  Research Center Asahi Glass Co. Ltd.

• Takahashi Y

  National Inst. Animal Health Ibaraki Jpn

• Iwafuchi Naoki

  Department Of Applied Physics Tohoku University

• Takahashi Y

  Department Of Molecular & Materials Sciences Kyushu University

• Sugimoto Naoki

  Asahi Glass Co. Ltd. Research Center

• Fujiwara Takumi

  Dep. Of Applied Physics Tohoku Univ.

• Takahashi Yoshihiro

  Department Of Applied Physics Osaka City University

• Masai Hirokazu

  Department of Applied Physics, School of Engineering, Tohoku University

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