JPH0179017U - - Google Patents
Info
- Publication number
- JPH0179017U JPH0179017U JP1987175414U JP17541487U JPH0179017U JP H0179017 U JPH0179017 U JP H0179017U JP 1987175414 U JP1987175414 U JP 1987175414U JP 17541487 U JP17541487 U JP 17541487U JP H0179017 U JPH0179017 U JP H0179017U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- diameter
- light
- optical isolator
- polarizer
- 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 5
Description
第１図は本考案の光アイソレータにおける一実
施例の断面図。第２図、第３図は従来の光アイソ
レータの断面図。
１，１１，２１：ホルダーケース、２，１２，
２２：永久磁石、３：偏光子、４：フアラデー回
転子、５：検光子、６：遮光板。
FIG. 1 is a sectional view of one embodiment of the optical isolator of the present invention. FIGS. 2 and 3 are cross-sectional views of conventional optical isolators. 1, 11, 21: Holder case, 2, 12,
22: Permanent magnet, 3: Polarizer, 4: Faraday rotator, 5: Analyzer, 6: Light shielding plate.
Claims (1)
空状永久磁石、検光子が内部に挿入、固定された
第２の中空状永久磁石、その中間もしくは一方の
中空状永久磁石内に配置されたフアラデー回転子
、および上記永久磁石部材をそれぞれ内装する一
対のホルダーケースから構成される光アイソレー
タにおいて、偏光子と検光子間に、中心部に遮光
孔を形成した遮光板を配置することを特徴とした
光アイソレータ。 (2) 入射光側ホルダーケースの光導入口の口径
をｍ１、遮光孔の口径をｍ２、出射光側ホルダー
ケースの光導出口の口径をｍ３としたとき、それ
ぞれの口径がｍ１＜ｍ２＜ｍ３の関係を有し、か
つｍ２ｍ１＜１．２に設定した実用新案登録請求
の範囲第(1)項記載の光アイソレータ。[Claims for Utility Model Registration] (1) A first hollow permanent magnet in which a polarizer is inserted and fixed, a second hollow permanent magnet in which an analyzer is inserted and fixed, and an intermediate or In an optical isolator consisting of a Faraday rotator disposed within one hollow permanent magnet and a pair of holder cases each containing the above-mentioned permanent magnet members, a light-shielding hole is provided in the center between a polarizer and an analyzer. An optical isolator characterized by arranging a formed light shielding plate. (2) When the diameter of the light introduction port of the holder case on the incident light side is m 1 , the diameter of the light shielding hole is m 2 , and the diameter of the light guide port of the holder case on the output light side is m 3 , each diameter is m 1 < The optical isolator according to claim (1), which has a relationship of m 2 <m 3 and m 2 m 1 <1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175414U JPH0179017U (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175414U JPH0179017U (en) | 1987-11-17 | 1987-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0179017U true JPH0179017U (en) | 1989-05-26 |
Family
ID=31467208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175414U Pending JPH0179017U (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0179017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03125321U (en) * | 1990-03-30 | 1991-12-18 |
-
1987
- 1987-11-17 JP JP1987175414U patent/JPH0179017U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03125321U (en) * | 1990-03-30 | 1991-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0381117A3 (en) | Faraday rotator device and optical switch containing same | |
| JPH0179017U (en) | ||
| JPS6449917U (en) | ||
| JPS6449916U (en) | ||
| JPH0169208U (en) | ||
| JPH03122420U (en) | ||
| JPS6276317U (en) | ||
| JPS5871714U (en) | optical coupler | |
| JPH0349524U (en) | ||
| JPH01115721U (en) | ||
| JPS6370534U (en) | ||
| JPH03125320U (en) | ||
| JP3142655B2 (en) | Optical isolator | |
| JPH01130113U (en) | ||
| JPS6449915U (en) | ||
| JPH0179016U (en) | ||
| JPH0322210U (en) | ||
| JPH01155020U (en) | ||
| JPH02149912U (en) | ||
| JPS61148029U (en) | ||
| JPH03125321U (en) | ||
| JPS60189019U (en) | optical isolator | |
| JPS6430510U (en) | ||
| JPH01177730U (en) | ||
| JPH0219113U (en) |