JP4913675B2 - 光ファイバケーブル - Google Patents
光ファイバケーブル Download PDFInfo
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- JP4913675B2 JP4913675B2 JP2007152861A JP2007152861A JP4913675B2 JP 4913675 B2 JP4913675 B2 JP 4913675B2 JP 2007152861 A JP2007152861 A JP 2007152861A JP 2007152861 A JP2007152861 A JP 2007152861A JP 4913675 B2 JP4913675 B2 JP 4913675B2
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- optical fiber
- twist
- birefringence
- fiber cable
- tape core
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光ファイバケーブルに実装する前の5本のテープ心線を構成する各光ファイバ(1本のテープ心線当たり4本の光ファイバを含むため合計20本)の複屈折を測定した結果、最大値は3.14rad/m、最小値は0.24rad/mであった。
図4は撚りピッチ500mmでテープ心線を実装した光ファイバケーブルにおいて、前記Bcableが与えられるテープ心線の固有複屈折の最大値B1および最小値B2の組合せを示したものである。ここで、テープ心線の固有複屈折の最大値B1および最小値B2の組合せは、撚りピッチP(単位はm)と、テープ心線の固有複屈折の最大値B1および最小値B2(単位はrad/m、いずれも正の実数)とを用いて、次式の関係を満たす範囲となる。
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2007152861A JP4913675B2 (ja) | 2007-06-08 | 2007-06-08 | 光ファイバケーブル |
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JP2007152861A JP4913675B2 (ja) | 2007-06-08 | 2007-06-08 | 光ファイバケーブル |
Publications (2)
Publication Number | Publication Date |
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JP2008304779A JP2008304779A (ja) | 2008-12-18 |
JP4913675B2 true JP4913675B2 (ja) | 2012-04-11 |
Family
ID=40233554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2007152861A Active JP4913675B2 (ja) | 2007-06-08 | 2007-06-08 | 光ファイバケーブル |
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JP (1) | JP4913675B2 (ja) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05142456A (ja) * | 1991-11-21 | 1993-06-11 | Hitachi Cable Ltd | テープユニツト型光ケーブル及びその製造方法 |
US5440659A (en) * | 1993-09-30 | 1995-08-08 | At&T Corp. | Method for fabricating a fiber optic cable having improved polarization mode dispersion (PMD) performance |
JP3356886B2 (ja) * | 1994-07-26 | 2002-12-16 | 住友電気工業株式会社 | 光ファイバテープ心線およびその製造方法,製造装置 |
JP2002122762A (ja) * | 2000-08-11 | 2002-04-26 | Furukawa Electric Co Ltd:The | 光ファイバケーブル |
JP2005037936A (ja) * | 2003-07-01 | 2005-02-10 | Sumitomo Electric Ind Ltd | 光ファイバケーブル |
EP1698919A4 (en) * | 2003-10-22 | 2007-08-15 | Fujikura Ltd | OPTICAL FIBER AND METHOD OF MEASURING THE DIFFUSION OF THE POLARIZATION MODE OF THE OPTICAL FIBER |
JP2005181664A (ja) * | 2003-12-19 | 2005-07-07 | Furukawa Electric Co Ltd:The | 光ファイバ及びこの光ファイバを用いたリボンスロット型光ファイバケーブル |
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2007
- 2007-06-08 JP JP2007152861A patent/JP4913675B2/ja active Active
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JP2008304779A (ja) | 2008-12-18 |
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