JPH0185652U - - Google Patents
Info
- Publication number
- JPH0185652U JPH0185652U JP17976187U JP17976187U JPH0185652U JP H0185652 U JPH0185652 U JP H0185652U JP 17976187 U JP17976187 U JP 17976187U JP 17976187 U JP17976187 U JP 17976187U JP H0185652 U JPH0185652 U JP H0185652U
- Authority
- JP
- Japan
- Prior art keywords
- section
- level
- light emitting
- comparison
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
第１図は本考案による光パルス試験器の一実施
例を示すブロツク構成図、第２図は同光パルス試
験器の表示部に表示される後方散乱光およびフレ
ネル反射光の波形図、第３図は光パルス試験器の
概略構造を説明するための図である。
６…被測定フアイバ、７…発光部、９…検出部
、１０…比較部、１１…処理部、１３…レベルコ
ントロール部。
FIG. 1 is a block configuration diagram showing an embodiment of the optical pulse tester according to the present invention, FIG. 2 is a waveform diagram of backscattered light and Fresnel reflected light displayed on the display of the optical pulse tester, and FIG. The figure is a diagram for explaining the schematic structure of the optical pulse tester. 6... Fiber to be measured, 7... Light emitting section, 9... Detecting section, 10... Comparing section, 11... Processing section, 13... Level control section.
Claims (1)
７と、前記被測定フアイバより出力されるフレネ
ル反射光のピーク値を検出する検出部９と、前記
ピーク値と予め定められたレベル値Ｌとを比較す
る比較部１０と、該比較部の比較結果に基づいて
前記発光部における光パルスのレベルの最適値を
演算する処理部１１と、前記発光部が発光する光
パルスのレベルを可変制御するためのレベルコン
トロール部１３とを備え、前記処理部の処理結果
に基づいて前記発光部が発光する光パルスのレベ
ルを最適値に制御可能にしたことを特徴とする光
パルス試験器。 A light emitting unit 7 that supplies optical pulses to the fiber 6 to be measured, a detection unit 9 that detects the peak value of the Fresnel reflected light output from the fiber 6 to be measured, and a detection unit 9 that detects the peak value and a predetermined level value L. A comparison section 10 for making a comparison, a processing section 11 for calculating an optimum value of the level of the light pulse in the light emitting section based on the comparison result of the comparison section, and a processing section 11 for variably controlling the level of the light pulse emitted by the light emitting section. 1. An optical pulse tester comprising: a level control section 13; the level of the optical pulse emitted by the light emitting section can be controlled to an optimum value based on the processing result of the processing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17976187U JPH069356Y2 (en) | 1987-11-27 | 1987-11-27 | Optical pulse tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17976187U JPH069356Y2 (en) | 1987-11-27 | 1987-11-27 | Optical pulse tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0185652U true JPH0185652U (en) | 1989-06-07 |
| JPH069356Y2 JPH069356Y2 (en) | 1994-03-09 |
Family
ID=31471306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17976187U Expired - Lifetime JPH069356Y2 (en) | 1987-11-27 | 1987-11-27 | Optical pulse tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069356Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408977A1 (en) * | 1993-03-17 | 1994-09-22 | Ando Electric | Optical pulse test set for displaying Raman scattered light |
-
1987
- 1987-11-27 JP JP17976187U patent/JPH069356Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4408977A1 (en) * | 1993-03-17 | 1994-09-22 | Ando Electric | Optical pulse test set for displaying Raman scattered light |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069356Y2 (en) | 1994-03-09 |