JPS646623U - - Google Patents
Info
- Publication number
- JPS646623U JPS646623U JP10075687U JP10075687U JPS646623U JP S646623 U JPS646623 U JP S646623U JP 10075687 U JP10075687 U JP 10075687U JP 10075687 U JP10075687 U JP 10075687U JP S646623 U JPS646623 U JP S646623U
- Authority
- JP
- Japan
- Prior art keywords
- port
- optical fiber
- beam splitter
- otdr
- switching element
- 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
- Light Guides In General And Applications Therefor (AREA)
Description
第１図は本考案の一実施例を示す構成説明図、
第２図は偏光ビームスプリツタのクロストークの
状態を示す説明図である。
〜……第１〜第３のポート、８ａ〜８ｃ…
…ロツドレンズ、９……基準光源（レーザ）、１
６……伝送用光フアイバ、２０……スイツチブロ
ツク、２１……第１の偏光ビームスプリツタ…２
２…第２の偏光ビームスプリツタ、２３，２４…
…スイツチング素子、２５……光電変換素子、３
３……アンプ、３４……同期信号発生装置、３５
，３６……ドライバ、４０……信号処理装置。
FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention;
FIG. 2 is an explanatory diagram showing the state of crosstalk of the polarizing beam splitter. ~...First to third ports, 8a to 8c...
... Rod lens, 9 ... Reference light source (laser), 1
6...Transmission optical fiber, 20...Switch block, 21...First polarizing beam splitter...2
2...Second polarizing beam splitter, 23, 24...
...Switching element, 25...Photoelectric conversion element, 3
3...Amplifier, 34...Synchronization signal generator, 35
, 36... Driver, 40... Signal processing device.
Claims (1)
この第１のポートからの出射光を、偏光子、偏光
ビームスプリツタ、スイツチング素子等を介して
単一モードの被測定光フアイバに出射する第２の
ポートと、前記被測定光フアイバ中のフレネル反
射や後方散乱光を前記偏光ビームスプリツタ、ス
イツチング素子および第３のポートを介して受光
する光電変換素子を備えたＯＴＤＲ光スイツチに
おいて、前記第２のポートと前記被測定光フアイ
バ間の伝送用光フアイバとして偏波面保存光フア
イバを用いたことを特徴とするＯＴＤＲ用光スイ
ツチ。 a first port that emits light from a reference light source;
A second port that outputs the light emitted from the first port to a single mode optical fiber to be measured via a polarizer, a polarizing beam splitter, a switching element, etc.; In an OTDR optical switch equipped with a photoelectric conversion element that receives reflected or backscattered light through the polarization beam splitter, a switching element, and a third port, for transmission between the second port and the optical fiber to be measured. An optical switch for OTDR characterized by using a polarization maintaining optical fiber as an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10075687U JPS646623U (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10075687U JPS646623U (en) | 1987-06-30 | 1987-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS646623U true JPS646623U (en) | 1989-01-13 |
Family
ID=31329124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10075687U Pending JPS646623U (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS646623U (en) |
-
1987
- 1987-06-30 JP JP10075687U patent/JPS646623U/ja active Pending
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