JPS5555302A - Optical fiber - Google Patents
Optical fiberInfo
- 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
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
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)
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 |
-
1978
- 1978-10-20 JP JP12918078A patent/JPS5555302A/en active Pending
Cited By (3)
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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