Transmission Characteristics of Graded-Index Fiber

Shuzo SUZUKI; Masaaki YOSHIDA; Masao HOSHIKAWA; Kozo YOSHIMURA; Hiroshi YOKOTA; Toru YAMANISHI

Transmission Characteristics of Graded-Index Fiber

Shuzo SUZUKI, Masaaki YOSHIDA, Masao HOSHIKAWA, Kozo YOSHIMURA, Hiroshi YOKOTA, Toru YAMANISHI

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This paper describes the transmission characteristics of a graded-index fiber fabricated by CVD method. First, baseband frequency responses are discussed to be related with local bumps in refractive-index profiles. It is indicated that even a slight local bump causes serious deterioration of frequency response. Second, transmission loss characteristics are discussed as to four types of graded-index fibers. It is concluded that transmission loss is mainly originated from Rayleigh scattering loss and that in order to decrease scattering loss it is needed to reduce the fractional index differences caused by doping oxides. Finally, the transmission characteristics of long-length graded-index fibers are discussed. It is experimentally indicated that the dependency of bandwidth B on length L is nearly expressed as BL^-0.7-0.8 and that bandwidth of 160 MHz and transmission loss of 30 dB over 10 km are achieved.

Publication: IEICE TRANSACTIONS on transactions Vol.E61-E No.3 pp.213-216

Publication Date: 1978/03/25

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Type of Manuscript: Special Section PAPER (Special Issue on Integrated Optics and Optical Fiber Communications)

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Shuzo SUZUKI
Masaaki YOSHIDA
Masao HOSHIKAWA
Kozo YOSHIMURA
Hiroshi YOKOTA
Toru YAMANISHI

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Shuzo SUZUKI, Masaaki YOSHIDA, Masao HOSHIKAWA, Kozo YOSHIMURA, Hiroshi YOKOTA, Toru YAMANISHI, "Transmission Characteristics of Graded-Index Fiber" in IEICE TRANSACTIONS on transactions, vol. E61-E, no. 3, pp. 213-216, March 1978, doi: .
Abstract: This paper describes the transmission characteristics of a graded-index fiber fabricated by CVD method. First, baseband frequency responses are discussed to be related with local bumps in refractive-index profiles. It is indicated that even a slight local bump causes serious deterioration of frequency response. Second, transmission loss characteristics are discussed as to four types of graded-index fibers. It is concluded that transmission loss is mainly originated from Rayleigh scattering loss and that in order to decrease scattering loss it is needed to reduce the fractional index differences caused by doping oxides. Finally, the transmission characteristics of long-length graded-index fibers are discussed. It is experimentally indicated that the dependency of bandwidth B on length L is nearly expressed as BL^-0.7-0.8 and that bandwidth of 160 MHz and transmission loss of 30 dB over 10 km are achieved.
URL: https://globals.ieice.org/en_transactions/transactions/10.1587/e61-e_3_213/_p

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@ARTICLE{e61-e_3_213,
author={Shuzo SUZUKI, Masaaki YOSHIDA, Masao HOSHIKAWA, Kozo YOSHIMURA, Hiroshi YOKOTA, Toru YAMANISHI, },
journal={IEICE TRANSACTIONS on transactions},
title={Transmission Characteristics of Graded-Index Fiber},
year={1978},
volume={E61-E},
number={3},
pages={213-216},
abstract={This paper describes the transmission characteristics of a graded-index fiber fabricated by CVD method. First, baseband frequency responses are discussed to be related with local bumps in refractive-index profiles. It is indicated that even a slight local bump causes serious deterioration of frequency response. Second, transmission loss characteristics are discussed as to four types of graded-index fibers. It is concluded that transmission loss is mainly originated from Rayleigh scattering loss and that in order to decrease scattering loss it is needed to reduce the fractional index differences caused by doping oxides. Finally, the transmission characteristics of long-length graded-index fibers are discussed. It is experimentally indicated that the dependency of bandwidth B on length L is nearly expressed as BL^-0.7-0.8 and that bandwidth of 160 MHz and transmission loss of 30 dB over 10 km are achieved.},
keywords={},
doi={},
ISSN={},
month={March},}

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TY - JOUR
TI - Transmission Characteristics of Graded-Index Fiber
T2 - IEICE TRANSACTIONS on transactions
SP - 213
EP - 216
AU - Shuzo SUZUKI
AU - Masaaki YOSHIDA
AU - Masao HOSHIKAWA
AU - Kozo YOSHIMURA
AU - Hiroshi YOKOTA
AU - Toru YAMANISHI
PY - 1978
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E61-E
IS - 3
JA - IEICE TRANSACTIONS on transactions
Y1 - March 1978
AB - This paper describes the transmission characteristics of a graded-index fiber fabricated by CVD method. First, baseband frequency responses are discussed to be related with local bumps in refractive-index profiles. It is indicated that even a slight local bump causes serious deterioration of frequency response. Second, transmission loss characteristics are discussed as to four types of graded-index fibers. It is concluded that transmission loss is mainly originated from Rayleigh scattering loss and that in order to decrease scattering loss it is needed to reduce the fractional index differences caused by doping oxides. Finally, the transmission characteristics of long-length graded-index fibers are discussed. It is experimentally indicated that the dependency of bandwidth B on length L is nearly expressed as BL^-0.7-0.8 and that bandwidth of 160 MHz and transmission loss of 30 dB over 10 km are achieved.
ER -