JPS5555302A - Optical fiber - Google Patents

Optical fiber

Info

Publication number
JPS5555302A
JPS5555302A JP12918078A JP12918078A JPS5555302A JP S5555302 A JPS5555302 A JP S5555302A JP 12918078 A JP12918078 A JP 12918078A JP 12918078 A JP12918078 A JP 12918078A JP S5555302 A JPS5555302 A JP S5555302A
Authority
JP
Japan
Prior art keywords
refractive index
absorbing layer
clad
increased
optical fiber
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
JP12918078A
Other languages
Japanese (ja)
Inventor
Shintaro Izutsui
Yasuro Furui
Toshiaki Kuroba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co Ltd
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 by Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP12918078A priority Critical patent/JPS5555302A/en
Publication of JPS5555302A publication Critical patent/JPS5555302A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE: To achieve the improvement in the transmission characteristics in a long wavelength band by subsequently forming a support layer, an absorbing layer for higher modes, a clad and a core from the outside circumference to the central part and providing the specific relations among the refractive indices thereof.
CONSTITUTION: The optical fiber is so constituted that a clad 2 of a refractive index n1, a higher mode absorbing layer 4 of a refractive index n3 and a support layer of a refractive index n2 subsequently around a core 1 of a refractive index n0 of the central part. These are then so arranged that the respective refractive indices become n0>n3>n1>n2 and n3>n1. This results in the increased effect of the absorbing layer, feasibility of attenuation of the higher modes produced when the refractive index of the clad is increased by the absorbing layer 4 and the obviation of the increased transmission loss in a long wavelength band.
COPYRIGHT: (C)1980,JPO&Japio
JP12918078A 1978-10-20 1978-10-20 Optical fiber Pending JPS5555302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12918078A JPS5555302A (en) 1978-10-20 1978-10-20 Optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12918078A JPS5555302A (en) 1978-10-20 1978-10-20 Optical fiber

Publications (1)

Publication Number Publication Date
JPS5555302A true JPS5555302A (en) 1980-04-23

Family

ID=15003109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12918078A Pending JPS5555302A (en) 1978-10-20 1978-10-20 Optical fiber

Country Status (1)

Country Link
JP (1) JPS5555302A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186702A (en) * 1982-04-09 1983-10-31 ウエスターン・エレクトリック・カムパニー・インコーポレーテッド Single mode optical fiber
JPS61245134A (en) * 1985-04-20 1986-10-31 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Planar light waveguide and manufacture thereof
JPS622210A (en) * 1985-06-28 1987-01-08 Hoya Corp Faraday rotation single-mode fiber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186702A (en) * 1982-04-09 1983-10-31 ウエスターン・エレクトリック・カムパニー・インコーポレーテッド Single mode optical fiber
JPS61245134A (en) * 1985-04-20 1986-10-31 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン Planar light waveguide and manufacture thereof
JPS622210A (en) * 1985-06-28 1987-01-08 Hoya Corp Faraday rotation single-mode fiber

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