JPS6279207U - - Google Patents

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Publication number
JPS6279207U
JPS6279207U JP16972685U JP16972685U JPS6279207U JP S6279207 U JPS6279207 U JP S6279207U JP 16972685 U JP16972685 U JP 16972685U JP 16972685 U JP16972685 U JP 16972685U JP S6279207 U JPS6279207 U JP S6279207U
Authority
JP
Japan
Prior art keywords
core
optical transmission
transmission line
line according
refractive 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.)
Pending
Application number
JP16972685U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16972685U priority Critical patent/JPS6279207U/ja
Publication of JPS6279207U publication Critical patent/JPS6279207U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図はそれぞれ本考案の一実施
例に係る光伝送路の横断面図および屈折率分布図
、第３図および第４図はそれぞれ従来の耐放射線
光フアイバの横断面図および屈折率分布図である
。 図中、１は第１のコア、２は第２のコア、３は
クラツド、４はサポートである。 1 and 2 are a cross-sectional view and a refractive index distribution diagram of an optical transmission line according to an embodiment of the present invention, respectively, and FIGS. 3 and 4 are a cross-sectional view and a refractive index distribution diagram of a conventional radiation-resistant optical fiber, respectively. It is a refractive index distribution map. In the figure, 1 is a first core, 2 is a second core, 3 is a cladding, and 4 is a support.

Claims (1)

【実用新案登録請求の範囲】 (1) 第１のコアと、該第１のコアの外周に被覆
され且つ第１のコアより低い屈折率を有し、第１
のコアとによりシングルモード光伝送路を形成す
る第２のコアと、該第２のコアの外周に被覆され
且つ第２のコアより低い屈折率を有し、第２のコ
アとによりマルチモード光伝送路を形成するクラ
ツドとからなることを特徴とする光伝送路。 (2) 上記第２のコアが純粋石英からなることを
特徴とする実用新案登録請求の範囲第１項記載の
光伝送路。 (3) 上記第１のコアがＧｅＯ２―ＳｉＯ２から
なり、上記クラツドがＦ―ＳｉＯ２からなること
を特徴とする実用新案登録請求の範囲第２項記載
の光伝送路。 (4) 上記第２のコア半径が上記第１のコア半径
の５倍以上であり且つ上記第１、第２のコアの屈
折率差が０．２〜０．３％の範囲内であることを
特徴とする実用新案登録請求の範囲第１項ないし
第３項のうちいずれか１項に記載の光伝送路。[Claims for Utility Model Registration] (1) A first core;
a second core that forms a single-mode optical transmission path with the core, and a second core that is coated on the outer periphery of the second core and has a lower refractive index than the second core, and that forms a single-mode optical transmission path. An optical transmission line comprising a cladding forming a transmission line. (2) The optical transmission line according to claim 1, wherein the second core is made of pure quartz. (3) The optical transmission line according to claim 2, wherein the first core is made of GeO 2 -SiO 2 and the cladding is made of F-SiO 2 . (4) The radius of the second core is 5 times or more the radius of the first core, and the difference in refractive index between the first and second cores is within the range of 0.2 to 0.3%. An optical transmission line according to any one of claims 1 to 3 of the utility model registration claims, characterized in that:
JP16972685U 1985-11-06 1985-11-06 Pending JPS6279207U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16972685U JPS6279207U (en) 1985-11-06 1985-11-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16972685U JPS6279207U (en) 1985-11-06 1985-11-06

Publications (1)

Publication Number Publication Date
JPS6279207U true JPS6279207U (en) 1987-05-21

Family

ID=31103797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16972685U Pending JPS6279207U (en) 1985-11-06 1985-11-06

Country Status (1)

Country Link
JP (1) JPS6279207U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007119509A1 (en) * 2006-04-05 2007-10-25 Nippon Telegraph And Telephone Corporation Double-core optical fiber
WO2009066429A1 (en) * 2007-11-19 2009-05-28 Mitsubishi Cable Industries, Ltd. Optical fiber and method for producing the same
JP2010049064A (en) * 2008-08-22 2010-03-04 Nippon Telegr & Teleph Corp <Ntt> Dual mode optical fiber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007119509A1 (en) * 2006-04-05 2007-10-25 Nippon Telegraph And Telephone Corporation Double-core optical fiber
JP2012048248A (en) * 2006-04-05 2012-03-08 Nippon Telegr & Teleph Corp <Ntt> Double-core optical fiber
WO2009066429A1 (en) * 2007-11-19 2009-05-28 Mitsubishi Cable Industries, Ltd. Optical fiber and method for producing the same
JPWO2009066429A1 (en) * 2007-11-19 2011-03-31 三菱電線工業株式会社 Optical fiber and manufacturing method thereof
JP5476125B2 (en) * 2007-11-19 2014-04-23 三菱電線工業株式会社 Optical fiber and manufacturing method thereof
JP2010049064A (en) * 2008-08-22 2010-03-04 Nippon Telegr & Teleph Corp <Ntt> Dual mode optical fiber

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