プラスティック光ファイバーの不56306;57123;一性ならびに受光器の配置が測定特性に及ぼす影響

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/578
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Title
プラスティック光ファイバーの不56306;57123;一性ならびに受光器の配置が測定特性に及ぼす影響
Title Alternative
Inhomogeneity of Plastic Optical Fiber and Effects of Photodiode Position on Measured Characteristics
Author
氏名 橋爪 信郎
ヨミ ハシヅメ ノブオ
別名 Hashizume Nobuo
氏名 石浦 朋広
ヨミ イシウラ トモヒロ
別名 Ishiura Tomohiro
氏名 伊吹 健児
ヨミ イブキ ケンジ
別名 Ibuki Kenji
氏名 中島 文徳
ヨミ ナカジマ フミノリ
別名 Nakajima Fuminori
氏名 西垣内 順
ヨミ ニシガウチ ジュン
別名 Nishigauchi Jun
氏名 本田 幸生
ヨミ ホンダ ユキオ
別名 Honda Yukio
氏名 齋藤 千晴
ヨミ サイトウ チハル
別名 Saito Chiharu
氏名 石田 亮介
ヨミ イシダ リョウスケ
別名 Ishida Ryosuke
Subject
Plastic optical fiber
Inhomogeneity
Near field pattern
Far field pattern
Photodiode position
NDC
547.68
Abstract

Near field patterns(NFPs) of a plastic optical fiber (POF) are studied in this paper. NFPs are
found to be inhomogeneous across the cross section of the POF and vary irregularly over short POF
distances. They also vary when light incident angles are varied. The irregularity and inhomogeneity
are found to come not from the irregularity of the POF end surfaces but from the POF bulk property.
They are also found to affect the far field pattern(FFP),which in turn affects the impulse response
waveform and frequency transfer characteristics of the POF.
The use of a photodiode in combination with a POF of a large diameter and large numerical aperture
is also studied in this paper. Frequency transfer function of a POF can be measured precisely only
when all of the exiting lights from the POF are received at a photodiode(PD). Such a condition is
not met for the POF under consideration. POFs of 35m and 10m in length and with light incident
at zero degree both show the best frequency characteristics when the distance between the POF end
surface and the APD is the largest as we have expected. However,POF of 10m in length and light
incident at 25 degrees shows the best frequency characteristics when the distance is small. Both
characteristics are discussed in terms of varying angle distributions of the light that the APD can
accept with the varying distances.

Journal Title
広島工業大学紀要. 研究編
Volume
42
Spage
1
Epage
5
Published Date
2008-02
Publisher
広島工業大学
ISSN
13469975
NCID
AA11599110
Language
jpn
NIIType
Departmental Bulletin Paper
Text Version
出版社版
Old URI
Set
it-hiroshima