JPS52146257A - Optical repeater margin measuring method - Google Patents
Optical repeater margin measuring methodInfo
- Publication number
- JPS52146257A JPS52146257A JP6226176A JP6226176A JPS52146257A JP S52146257 A JPS52146257 A JP S52146257A JP 6226176 A JP6226176 A JP 6226176A JP 6226176 A JP6226176 A JP 6226176A JP S52146257 A JPS52146257 A JP S52146257A
- Authority
- JP
- Japan
- Prior art keywords
- measuring method
- optical repeater
- margin measuring
- margin
- modulated
- 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
- Testing Of Optical Devices Or Fibers (AREA)
- Dc Digital Transmission (AREA)
Abstract
PURPOSE: To perform accurate measurement of S/N margins by adding modulated or non-modulated light to an input optical signal by means of a coupling means so that repeating operation is put in an imperfect state.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6226176A JPS52146257A (en) | 1976-05-31 | 1976-05-31 | Optical repeater margin measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6226176A JPS52146257A (en) | 1976-05-31 | 1976-05-31 | Optical repeater margin measuring method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52146257A true JPS52146257A (en) | 1977-12-05 |
Family
ID=13195017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6226176A Pending JPS52146257A (en) | 1976-05-31 | 1976-05-31 | Optical repeater margin measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52146257A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0056304A2 (en) * | 1981-01-08 | 1982-07-21 | Hewlett-Packard Limited | Method and apparatus for measuring the frequency response of an element or elements in a digital transmission path |
US5282074A (en) * | 1992-01-31 | 1994-01-25 | Fujitsu Limited | Optical amplification repeating system |
-
1976
- 1976-05-31 JP JP6226176A patent/JPS52146257A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0056304A2 (en) * | 1981-01-08 | 1982-07-21 | Hewlett-Packard Limited | Method and apparatus for measuring the frequency response of an element or elements in a digital transmission path |
US5282074A (en) * | 1992-01-31 | 1994-01-25 | Fujitsu Limited | Optical amplification repeating system |
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