JP2005250339A - マルチステップインデックス光ファイバ - Google Patents
マルチステップインデックス光ファイバ Download PDFInfo
- Publication number
- JP2005250339A JP2005250339A JP2004063877A JP2004063877A JP2005250339A JP 2005250339 A JP2005250339 A JP 2005250339A JP 2004063877 A JP2004063877 A JP 2004063877A JP 2004063877 A JP2004063877 A JP 2004063877A JP 2005250339 A JP2005250339 A JP 2005250339A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- core
- refractive index
- index optical
- step index
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
- G02B6/02038—Core or cladding made from organic material, e.g. polymeric material with core or cladding having graded refractive index
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
- G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03688—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 5 or more layers
Abstract
【解決手段】 各々一定の屈折率を有して同心円状に配置された2つ以上のコア部11、12、13、14、15を有し、それらのコア部11、12、13、14、15の屈折率が外側のコア部ほどより小さくなるように段階的に変化しているマルチステップインデックス光ファイバにおいて、コア部11、12、13、14、15の屈折率を、隣接するコア間の屈折率差ΔNが均等で、かつG乗分布に近似したものとする。
【選択図】 図1
Description
前述したように各々一定の屈折率を有して同心円状に配置された2つ以上のコア部を有し、それらのコア部の屈折率が外側のコア部ほどより小さくなるように段階的に変化しているマルチステップインデックス光ファイバにおいて、
コア部の屈折率が、隣接するコア間の屈折率差が均等で、かつG乗分布に近似したものとなっていることを特徴とするものである。
20 クラッド
Claims (1)
- 各々一定の屈折率を有して同心円状に配置された2つ以上のコア部を有し、それらのコア部の屈折率が外側のコア部ほどより小さくなるように段階的に変化しているマルチステップインデックス光ファイバにおいて、
前記コア部の屈折率が、隣接するコア間の屈折率差が均等で、かつG乗分布に近似したものとなっていることを特徴とするマルチステップインデックス光ファイバ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004063877A JP4226497B2 (ja) | 2004-03-08 | 2004-03-08 | マルチステップインデックス光ファイバ |
US10/592,261 US7366389B2 (en) | 2004-03-08 | 2005-02-22 | Multistep index optical fiber |
PCT/JP2005/003259 WO2005085923A1 (ja) | 2004-03-08 | 2005-02-22 | マルチステップインデックス光ファイバ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004063877A JP4226497B2 (ja) | 2004-03-08 | 2004-03-08 | マルチステップインデックス光ファイバ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005250339A true JP2005250339A (ja) | 2005-09-15 |
JP4226497B2 JP4226497B2 (ja) | 2009-02-18 |
Family
ID=34918173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004063877A Expired - Fee Related JP4226497B2 (ja) | 2004-03-08 | 2004-03-08 | マルチステップインデックス光ファイバ |
Country Status (3)
Country | Link |
---|---|
US (1) | US7366389B2 (ja) |
JP (1) | JP4226497B2 (ja) |
WO (1) | WO2005085923A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102507206B1 (ko) * | 2013-01-15 | 2023-03-06 | 매직 립, 인코포레이티드 | 초고해상도 스캐닝 섬유 디스플레이 |
DE112017001892T5 (de) | 2016-04-06 | 2018-12-13 | TeraDiode, Inc. | Optische Faserstrukturen und Verfahren zum Variieren von Laserstrahlprofilen |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4053204A (en) * | 1976-07-30 | 1977-10-11 | Bell Telephone Laboratories, Incorporated | Optical fiber having reduced dispersion |
JPS5678804A (en) * | 1979-11-30 | 1981-06-29 | Fujitsu Ltd | Focusing optical fiber and its production |
JP3762489B2 (ja) * | 1996-10-04 | 2006-04-05 | 旭化成エレクトロニクス株式会社 | マルチステップインデックス型プラスチック光ファイバおよびその製造方法 |
JP3745507B2 (ja) | 1997-07-31 | 2006-02-15 | 旭化成エレクトロニクス株式会社 | 多段階屈折率分布多心プラスチック光ファイバ |
JPH1152174A (ja) * | 1997-08-06 | 1999-02-26 | Oki Electric Ind Co Ltd | 光回路モジュール |
KR100460720B1 (ko) * | 2002-05-22 | 2004-12-08 | 에스에스씨피 주식회사 | 플라스틱 광섬유 모재 및 이의 제조방법 |
CN1182412C (zh) * | 2003-01-14 | 2004-12-29 | 长飞光纤光缆有限公司 | 大容量传输用低斜率色散位移单模光纤 |
JP4047232B2 (ja) * | 2003-06-18 | 2008-02-13 | 株式会社フジクラ | 高次モードファイバ用モード変換器 |
-
2004
- 2004-03-08 JP JP2004063877A patent/JP4226497B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-22 WO PCT/JP2005/003259 patent/WO2005085923A1/ja active Application Filing
- 2005-02-22 US US10/592,261 patent/US7366389B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4226497B2 (ja) | 2009-02-18 |
WO2005085923A1 (ja) | 2005-09-15 |
US20070196064A1 (en) | 2007-08-23 |
US7366389B2 (en) | 2008-04-29 |
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