JPH01137449U - - Google Patents
Info
- Publication number
- JPH01137449U JPH01137449U JP3322988U JP3322988U JPH01137449U JP H01137449 U JPH01137449 U JP H01137449U JP 3322988 U JP3322988 U JP 3322988U JP 3322988 U JP3322988 U JP 3322988U JP H01137449 U JPH01137449 U JP H01137449U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical path
- fiber
- optical
- inspected
- 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
- 230000003287 optical effect Effects 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 9
- 239000013307 optical fiber Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
Description
第１図と第２図は本考案の２つの実施例を示し
、本考案による光スイツチの基本構成の平面図で
あり、第３図と第４図は２つの従来例を示し、従
来の光スイツチの基本構成を示す平面図であり、
第５図は入射パルス光の波形と被検査フアイバー
からの戻り光の波形と受光フアイバーへ入射する
戻り光の波形及び音響光学素子の駆動信号パルス
の波形を描いた波形図である。
４……ビームスプリツター、５……音響光学素
子。
1 and 2 show two embodiments of the present invention, and are plan views of the basic configuration of the optical switch according to the invention, and FIGS. 3 and 4 show two conventional examples, and are plan views of the basic configuration of the optical switch according to the present invention. FIG. 2 is a plan view showing the basic configuration of the switch;
FIG. 5 is a waveform diagram depicting the waveform of the incident pulsed light, the waveform of the return light from the fiber to be inspected, the waveform of the return light incident on the receiving fiber, and the waveform of the drive signal pulse of the acousto-optic element. 4... Beam splitter, 5... Acousto-optic element.
Claims (1)
源あるいは前記光源からのパルス光を導光する入
射光フアイバーと、被検査フアイバーと、被検査
フアイバーからの戻り光を光路変換する受動的光
路変換器と、前記受動的光路変換器によつて光路
変換された光を受光する受光フアイバーとからな
る光スイツチにおいて、前記受動的光路変換器と
受光フアイバーの光軸上に能動的光路変換器を配
置したことを特徴とする光スイツチ。 (2) 能動的光路変換器の駆動時に光路変換され
た光を受光するように受光フアイバーを配置する
請求項１記載の光スイツチ。 (3) 能動的光路変換器の非駆動時に光路変換さ
れない光を受光するよう受光フアイバーを配置す
る請求項１記載の光スイツチ。 (4) 請求項１〜３記載の光スイツチと、受光フ
アイバーからの光を検出し測定する測定手段とか
らなる光パルス試験器。[Claims for Utility Model Registration] (1) A light source that inputs pulsed light to the fiber to be inspected, or an incident optical fiber that guides the pulsed light from the light source, the fiber to be inspected, and the return light from the fiber to be inspected. In an optical switch comprising a passive optical path changer that changes the optical path, and a light receiving fiber that receives the light whose optical path has been changed by the passive optical path changer, a An optical switch characterized by disposing an active optical path changer. (2) The optical switch according to claim 1, wherein the light receiving fiber is arranged so as to receive the light whose optical path is changed when the active optical path converter is driven. (3) The optical switch according to claim 1, wherein the light receiving fiber is arranged so as to receive the light whose optical path is not changed when the active optical path changer is not driven. (4) An optical pulse tester comprising the optical switch according to any one of claims 1 to 3 and a measuring means for detecting and measuring light from a light receiving fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322988U JPH01137449U (en) | 1988-03-15 | 1988-03-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3322988U JPH01137449U (en) | 1988-03-15 | 1988-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137449U true JPH01137449U (en) | 1989-09-20 |
Family
ID=31259887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3322988U Pending JPH01137449U (en) | 1988-03-15 | 1988-03-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137449U (en) |
-
1988
- 1988-03-15 JP JP3322988U patent/JPH01137449U/ja active Pending
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