JPS63144615U - - Google Patents
Info
- Publication number
- JPS63144615U JPS63144615U JP3684287U JP3684287U JPS63144615U JP S63144615 U JPS63144615 U JP S63144615U JP 3684287 U JP3684287 U JP 3684287U JP 3684287 U JP3684287 U JP 3684287U JP S63144615 U JPS63144615 U JP S63144615U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- rotation angle
- optical material
- coil
- faraday rotation
- 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
- 239000000463 material Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000382 optic material Substances 0.000 description 1
Description
第１図は本考案を適用した光アイソレータの一
例を示す説明図、第２図は磁気光学材料の外部磁
界に対するフアラデー回転角の関係を示すグラフ
である。
１０……フアラデー回転子、１４……ホルダ、
１６……磁気光学材料、１８……永久磁石、２０
……コイル、２２……電源、２４……温度補償回
路。
FIG. 1 is an explanatory diagram showing an example of an optical isolator to which the present invention is applied, and FIG. 2 is a graph showing the relationship of the Faraday rotation angle of a magneto-optic material with respect to an external magnetic field. 10... Faraday rotator, 14... holder,
16...Magneto-optical material, 18...Permanent magnet, 20
... Coil, 22 ... Power supply, 24 ... Temperature compensation circuit.
Claims (1)
なる寸法の磁気光学材料を中央に設け、その外側
にバイアス磁界を与える永久磁石と磁界調整用の
コイルを配置し、該コイルに通電して前記磁気光
学材料のフアラデー回転角が４５度になるように
印加不飽和磁界を調整する電源と、フアラデー回
転角の温度変動を抑えるようコイル電流を制御す
る温度補償回路を設けたフアラデー回転子。 A magneto-optical material with dimensions such that the Faraday rotation angle is 45 degrees or more in a saturated magnetic field is provided in the center, and a permanent magnet that provides a bias magnetic field and a coil for adjusting the magnetic field are placed on the outside of the magneto-optical material, and the coil is energized to adjust the magnetic field. A Faraday rotator equipped with a power supply that adjusts an applied unsaturated magnetic field so that the Faraday rotation angle of the optical material is 45 degrees, and a temperature compensation circuit that controls a coil current to suppress temperature fluctuations in the Faraday rotation angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3684287U JPS63144615U (en) | 1987-03-13 | 1987-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3684287U JPS63144615U (en) | 1987-03-13 | 1987-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63144615U true JPS63144615U (en) | 1988-09-22 |
Family
ID=30847623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3684287U Pending JPS63144615U (en) | 1987-03-13 | 1987-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63144615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007684A1 (en) * | 1989-11-14 | 1991-05-30 | Namiki Precision Jewel Co., Ltd. | Optical isolator |
| WO2002091069A1 (en) * | 2001-05-07 | 2002-11-14 | Fujitsu Limited | Faraday rotator |
| JP2016024357A (en) * | 2014-07-22 | 2016-02-08 | 株式会社フジクラ | Optical isolator |
-
1987
- 1987-03-13 JP JP3684287U patent/JPS63144615U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007684A1 (en) * | 1989-11-14 | 1991-05-30 | Namiki Precision Jewel Co., Ltd. | Optical isolator |
| WO2002091069A1 (en) * | 2001-05-07 | 2002-11-14 | Fujitsu Limited | Faraday rotator |
| JP2016024357A (en) * | 2014-07-22 | 2016-02-08 | 株式会社フジクラ | Optical isolator |
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