JPH0544975B2 - - Google Patents
Info
- Publication number
- JPH0544975B2 JPH0544975B2 JP15343684A JP15343684A JPH0544975B2 JP H0544975 B2 JPH0544975 B2 JP H0544975B2 JP 15343684 A JP15343684 A JP 15343684A JP 15343684 A JP15343684 A JP 15343684A JP H0544975 B2 JPH0544975 B2 JP H0544975B2
- Authority
- JP
- Japan
- Prior art keywords
- curve
- optical fiber
- backscattered light
- smoothing
- points
- 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.)
- Expired - Lifetime
Links
- 239000013307 optical fiber Substances 0.000 claims description 50
- 230000007547 defect Effects 0.000 claims description 23
- 238000009499 grossing Methods 0.000 claims description 20
- 230000002159 abnormal effect Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
- G01M11/3145—Details of the optoelectronics or data analysis
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15343684A JPS6130741A (ja) | 1984-07-24 | 1984-07-24 | 光フアイバの後方散乱光異常パタ−ン検出方法およびその装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15343684A JPS6130741A (ja) | 1984-07-24 | 1984-07-24 | 光フアイバの後方散乱光異常パタ−ン検出方法およびその装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6130741A JPS6130741A (ja) | 1986-02-13 |
| JPH0544975B2 true JPH0544975B2 (en]) | 1993-07-07 |
Family
ID=15562478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15343684A Granted JPS6130741A (ja) | 1984-07-24 | 1984-07-24 | 光フアイバの後方散乱光異常パタ−ン検出方法およびその装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6130741A (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2717592B2 (ja) * | 1990-05-18 | 1998-02-18 | 国際電信電話株式会社 | 電気的パルスエコーによる光海底ケーブルの障害点測定方法 |
| JP5256225B2 (ja) * | 2010-01-29 | 2013-08-07 | 日本電信電話株式会社 | 光線路測定装置及び光線路測定方法 |
-
1984
- 1984-07-24 JP JP15343684A patent/JPS6130741A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6130741A (ja) | 1986-02-13 |
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