JPS6279207U - - Google Patents
Info
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims 2
- 229910005793 GeO 2 Inorganic materials 0.000 claims 1
- 239000010453 quartz Substances 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Glass Compositions (AREA)
Description
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)
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:
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)
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 |
-
1985
- 1985-11-06 JP JP16972685U patent/JPS6279207U/ja active Pending
Cited By (6)
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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