Continuous Fabrication Process for High-Silica Fiber Preforms

Tatsuo IZAWA; Shoichi SUDO; Fumiaki HANAWA

Continuous Fabrication Process for High-Silica Fiber Preforms

Tatsuo IZAWA, Shoichi SUDO, Fumiaki HANAWA

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A continuous fabrication process for high-silica fiber preforms has been developed. Unlike the conventional fabrication process, the perform is grown in an axial direction. The process is essentially a soot process. A porous preform is grown in the axial direction by the deposition of fine glass particles synthesized with vapor reaction of raw materials, and is continuously consolidated into a transparent preform by zone-melting. The refractive index profile is controlled in the spatial domain, rather than as a function of time, as in conventional methods. The transmission loss of the fiber made by this method was 2.3 dB/km at 0.85 µm and 0.75 dB/km at 1.2 µm. The bandwidth graded index type fiber was 300 MHz・km as an average. The best value was 1.0 GHz・km. These fibers had good uniformity along the longitudinal direction, both in transmission characteristics and in dimensions.

Publication: IEICE TRANSACTIONS on transactions Vol.E62-E No.11 pp.779-785

Publication Date: 1979/11/25

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Type of Manuscript: PAPER

Category: Optical and Quantum Electronics

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Tatsuo IZAWA
Shoichi SUDO
Fumiaki HANAWA

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Tatsuo IZAWA, Shoichi SUDO, Fumiaki HANAWA, "Continuous Fabrication Process for High-Silica Fiber Preforms" in IEICE TRANSACTIONS on transactions, vol. E62-E, no. 11, pp. 779-785, November 1979, doi: .
Abstract: A continuous fabrication process for high-silica fiber preforms has been developed. Unlike the conventional fabrication process, the perform is grown in an axial direction. The process is essentially a soot process. A porous preform is grown in the axial direction by the deposition of fine glass particles synthesized with vapor reaction of raw materials, and is continuously consolidated into a transparent preform by zone-melting. The refractive index profile is controlled in the spatial domain, rather than as a function of time, as in conventional methods. The transmission loss of the fiber made by this method was 2.3 dB/km at 0.85 µm and 0.75 dB/km at 1.2 µm. The bandwidth graded index type fiber was 300 MHz・km as an average. The best value was 1.0 GHz・km. These fibers had good uniformity along the longitudinal direction, both in transmission characteristics and in dimensions.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e62-e_11_779/_p

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@ARTICLE{e62-e_11_779,
author={Tatsuo IZAWA, Shoichi SUDO, Fumiaki HANAWA, },
journal={IEICE TRANSACTIONS on transactions},
title={Continuous Fabrication Process for High-Silica Fiber Preforms},
year={1979},
volume={E62-E},
number={11},
pages={779-785},
abstract={A continuous fabrication process for high-silica fiber preforms has been developed. Unlike the conventional fabrication process, the perform is grown in an axial direction. The process is essentially a soot process. A porous preform is grown in the axial direction by the deposition of fine glass particles synthesized with vapor reaction of raw materials, and is continuously consolidated into a transparent preform by zone-melting. The refractive index profile is controlled in the spatial domain, rather than as a function of time, as in conventional methods. The transmission loss of the fiber made by this method was 2.3 dB/km at 0.85 µm and 0.75 dB/km at 1.2 µm. The bandwidth graded index type fiber was 300 MHz・km as an average. The best value was 1.0 GHz・km. These fibers had good uniformity along the longitudinal direction, both in transmission characteristics and in dimensions.},
keywords={},
doi={},
ISSN={},
month={November},}

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TY - JOUR
TI - Continuous Fabrication Process for High-Silica Fiber Preforms
T2 - IEICE TRANSACTIONS on transactions
SP - 779
EP - 785
AU - Tatsuo IZAWA
AU - Shoichi SUDO
AU - Fumiaki HANAWA
PY - 1979
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E62-E
IS - 11
JA - IEICE TRANSACTIONS on transactions
Y1 - November 1979
AB - A continuous fabrication process for high-silica fiber preforms has been developed. Unlike the conventional fabrication process, the perform is grown in an axial direction. The process is essentially a soot process. A porous preform is grown in the axial direction by the deposition of fine glass particles synthesized with vapor reaction of raw materials, and is continuously consolidated into a transparent preform by zone-melting. The refractive index profile is controlled in the spatial domain, rather than as a function of time, as in conventional methods. The transmission loss of the fiber made by this method was 2.3 dB/km at 0.85 µm and 0.75 dB/km at 1.2 µm. The bandwidth graded index type fiber was 300 MHz・km as an average. The best value was 1.0 GHz・km. These fibers had good uniformity along the longitudinal direction, both in transmission characteristics and in dimensions.
ER -