JPS55113008A - Coupling structure of optical fiber - Google Patents
Coupling structure of optical fiberInfo
- Publication number
- JPS55113008A JPS55113008A JP2114879A JP2114879A JPS55113008A JP S55113008 A JPS55113008 A JP S55113008A JP 2114879 A JP2114879 A JP 2114879A JP 2114879 A JP2114879 A JP 2114879A JP S55113008 A JPS55113008 A JP S55113008A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light
- semiconductor laser
- light source
- reflected light
- 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 Couplings Of Light Guides (AREA)
Abstract
PURPOSE: To obtain the coupling method of optical fibers in which reflected light does not return to light source hence laser noise is less by disposing a signal mode optical fiber between a semiconductor laser and a multimode optical fiber.
CONSTITUTION: The exit light 11 from a semiconductor laser 1 passes through a single mode optical fiber 5 and is entered to the multimode optical fiber 4 in a plug 3 placed by leaving a spacing from this fiber 5. At this time, the reflected light 12 at the photodetecting end face 4a of the optical fiber 4 and the reflected light from the other end face do not reverse enter the light source because the diameter of the optical fiber 5 is sufficiently small. As a result of this, the semiconductor laser noise may be considerably improved and if such light source is used, the SN ratio of optical transmission may be improved and the stabilization of light signal output achieved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2114879A JPS55113008A (en) | 1979-02-23 | 1979-02-23 | Coupling structure of optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2114879A JPS55113008A (en) | 1979-02-23 | 1979-02-23 | Coupling structure of optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55113008A true JPS55113008A (en) | 1980-09-01 |
Family
ID=12046810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2114879A Pending JPS55113008A (en) | 1979-02-23 | 1979-02-23 | Coupling structure of optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55113008A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4440470A (en) * | 1980-09-12 | 1984-04-03 | U.S. Philips Corporation | Optical transmission system coupling a semiconductor laser diode to a multimode optical fiber |
-
1979
- 1979-02-23 JP JP2114879A patent/JPS55113008A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4440470A (en) * | 1980-09-12 | 1984-04-03 | U.S. Philips Corporation | Optical transmission system coupling a semiconductor laser diode to a multimode optical fiber |
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