JPS6480914A - Optical coupler - Google Patents
Optical couplerInfo
- Publication number
- JPS6480914A JPS6480914A JP23794087A JP23794087A JPS6480914A JP S6480914 A JPS6480914 A JP S6480914A JP 23794087 A JP23794087 A JP 23794087A JP 23794087 A JP23794087 A JP 23794087A JP S6480914 A JPS6480914 A JP S6480914A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- clad
- loss
- fiber
- 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
Abstract
PURPOSE:To reduce the loss between fibers and the loss between a bus fiber and a coupling fiber at the same time by making the refractive index of the clad of a 1st optical fiber larger than the refractive index of the clad of a 2nd optical fiber. CONSTITUTION:The cores 4 and 6 of the two optical fibers 1 and 2 are equal to each other, but the refractive index of the clad 3 of the 1st optical fiber is larger than that of the clad 5 of the 2nd optical fiber. Therefore, the clad of the 1st optical fiber 1 operates as a confining layer for light and the passage loss of light in the 1st optical fiber 1 decreases. Further, the clad 3 of the 1st optical fiber 1 operates as an acquisition layer for light and the coupling loss from the 2nd optical fiber 2 to the 1st optical fiber 1 is reduced. Consequently, the loss between the bus fibers and the loss between the bus fiber and coupling fiber are both reduced at the same time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23794087A JPS6480914A (en) | 1987-09-22 | 1987-09-22 | Optical coupler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23794087A JPS6480914A (en) | 1987-09-22 | 1987-09-22 | Optical coupler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6480914A true JPS6480914A (en) | 1989-03-27 |
Family
ID=17022714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23794087A Pending JPS6480914A (en) | 1987-09-22 | 1987-09-22 | Optical coupler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6480914A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010272827A (en) * | 2009-05-25 | 2010-12-02 | Fujikura Ltd | Optical fiber coupler and optical fiber amplifier |
-
1987
- 1987-09-22 JP JP23794087A patent/JPS6480914A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010272827A (en) * | 2009-05-25 | 2010-12-02 | Fujikura Ltd | Optical fiber coupler and optical fiber amplifier |
US8934167B2 (en) | 2009-05-25 | 2015-01-13 | Fujikura Ltd. | Optical fiber coupler and optical fiber amplifier |
US9425579B2 (en) | 2009-05-25 | 2016-08-23 | Fujikura Ltd. | Optical fiber coupler and optical fiber amplifier |
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