Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices

Naoki Iwafuchi; Hirokazu Masai; Yoshihiro Takahashi; Takumi Fujiwara; Seiki Ohara; Yuki Kondo; Naoki Sugimoto

doi:10.2109/jcersj2.116.1115

Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices

Naoki Iwafuchi, Hirokazu Masai, Yoshihiro Takahashi, Takumi Fujiwara, Seiki Ohara, Yuki Kondo, Naoki Sugimoto

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We examined the crystallization behavior of double clad fiber composed by BaO-TiO₂-GeO₂-SiO₂ based glasses in detail. Formation of needle-like fresnoite-type Ba₂Ti(Ge,Si) ₂O₈ were observed at the interface between the first and second clad. In addition, we employed the two-step heat-treatment (i.e., 728°C, 20 h + 749°C, 1 h) in fabrication of the crystallized fiber in order to obtain the highly-oriented fresnoite phase in the fiber structure. The first treating temperature, 728°C, 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.

Original language	English
Pages (from-to)	1115-1120
Number of pages	6
Journal	Journal of the Ceramic Society of Japan
Volume	116
Issue number	1358
DOIs	https://doi.org/10.2109/jcersj2.116.1115
Publication status	Published - 2008 Oct

Keywords

Glass ceramics
Nonlinear optics
Optical device

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10.2109/jcersj2.116.1115

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title = "Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices",

abstract = "We examined the crystallization behavior of double clad fiber composed by BaO-TiO2-GeO2-SiO2 based glasses in detail. Formation of needle-like fresnoite-type Ba2Ti(Ge,Si) 2O8 were observed at the interface between the first and second clad. In addition, we employed the two-step heat-treatment (i.e., 728°C, 20 h + 749°C, 1 h) in fabrication of the crystallized fiber in order to obtain the highly-oriented fresnoite phase in the fiber structure. The first treating temperature, 728°C, 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.",

keywords = "Glass ceramics, Nonlinear optics, Optical device",

author = "Naoki Iwafuchi and Hirokazu Masai and Yoshihiro Takahashi and Takumi Fujiwara and Seiki Ohara and Yuki Kondo and Naoki Sugimoto",

year = "2008",

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doi = "10.2109/jcersj2.116.1115",

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T1 - Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices

AU - Iwafuchi, Naoki

AU - Masai, Hirokazu

AU - Takahashi, Yoshihiro

AU - Fujiwara, Takumi

AU - Ohara, Seiki

AU - Kondo, Yuki

AU - Sugimoto, Naoki

PY - 2008/10

Y1 - 2008/10

N2 - We examined the crystallization behavior of double clad fiber composed by BaO-TiO2-GeO2-SiO2 based glasses in detail. Formation of needle-like fresnoite-type Ba2Ti(Ge,Si) 2O8 were observed at the interface between the first and second clad. In addition, we employed the two-step heat-treatment (i.e., 728°C, 20 h + 749°C, 1 h) in fabrication of the crystallized fiber in order to obtain the highly-oriented fresnoite phase in the fiber structure. The first treating temperature, 728°C, 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.

AB - We examined the crystallization behavior of double clad fiber composed by BaO-TiO2-GeO2-SiO2 based glasses in detail. Formation of needle-like fresnoite-type Ba2Ti(Ge,Si) 2O8 were observed at the interface between the first and second clad. In addition, we employed the two-step heat-treatment (i.e., 728°C, 20 h + 749°C, 1 h) in fabrication of the crystallized fiber in order to obtain the highly-oriented fresnoite phase in the fiber structure. The first treating temperature, 728°C, 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.

KW - Glass ceramics

KW - Nonlinear optics

KW - Optical device

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DO - 10.2109/jcersj2.116.1115

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SP - 1115

EP - 1120

JO - Journal of the Ceramic Society of Japan

JF - Journal of the Ceramic Society of Japan

IS - 1358

ER -

Crystallization behavior of optical fibers with multi layered structure for nonlinear optical devices

Abstract

Keywords

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