JPH0360312U - - Google Patents
Info
- Publication number
- JPH0360312U JPH0360312U JP12101789U JP12101789U JPH0360312U JP H0360312 U JPH0360312 U JP H0360312U JP 12101789 U JP12101789 U JP 12101789U JP 12101789 U JP12101789 U JP 12101789U JP H0360312 U JPH0360312 U JP H0360312U
- Authority
- JP
- Japan
- Prior art keywords
- faraday rotator
- holder
- polarizing element
- metal fusion
- case holder
- 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 3
- 230000004927 fusion Effects 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 3
- 230000010287 polarization Effects 0.000 claims 1
- 230000008033 biological extinction Effects 0.000 description 1
Description
第１図は本考案の一実施例を示す断面図。第２
図は光アイソレータを３６０°回転した時の消光
比を示す。
１……偏光子、２……フアラデー回転子ホルダ
、３……フアラデー回転子、４……永久磁石、５
，８……ケースホルダ、６……検光子、７……磁
性ヨーク。
FIG. 1 is a sectional view showing an embodiment of the present invention. Second
The figure shows the extinction ratio when the optical isolator is rotated 360 degrees. 1... Polarizer, 2... Faraday rotator holder, 3... Faraday rotator, 4... Permanent magnet, 5
, 8... Case holder, 6... Analyzer, 7... Magnetic yoke.
Claims (1)
アラデー回転子ホルダ、フアラデー回転子、永久
磁石及びケースホルダが金属融着により一体化固
定され、また他方の偏光素子とケースホルダもし
くは偏光素子と磁性ヨークとケースホルダが金属
融着により一体化固定された二分割体構造とし、
それぞれ配置された偏光素子の偏光面が４５°回
転した位置で前記二分割体が金属融着により一体
化された光アイソレータにおいて、前記フアラデ
ー回転子ホルダの熱膨脹係数βと、前記フアラデ
ー回転子の熱膨脹係数αとの比が、 ０．８＜α/β＜１．２ に設定することを特徴とする光アイソレータ。[Scope of Claim for Utility Model Registration] A polarizing element of either a polarizer or an analyzer, a Faraday rotator holder, a Faraday rotator, a permanent magnet, and a case holder are integrally fixed by metal fusion, and the other polarizing element It has a two-part structure in which the case holder or polarizing element, the magnetic yoke, and the case holder are integrated and fixed by metal fusion.
In an optical isolator in which the two halves are integrated by metal fusion at positions where the polarization planes of the polarizing elements arranged respectively are rotated by 45 degrees, the thermal expansion coefficient β of the Faraday rotator holder and the thermal expansion of the Faraday rotator An optical isolator characterized in that a ratio with a coefficient α is set to 0.8<α/β<1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12101789U JPH0360312U (en) | 1989-10-17 | 1989-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12101789U JPH0360312U (en) | 1989-10-17 | 1989-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0360312U true JPH0360312U (en) | 1991-06-13 |
Family
ID=31669062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12101789U Pending JPH0360312U (en) | 1989-10-17 | 1989-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0360312U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425119A (en) * | 1987-07-22 | 1989-01-27 | Matsushita Electric Industrial Co Ltd | Manufacture of optical isolator |
| JPH01200223A (en) * | 1988-02-04 | 1989-08-11 | Fuji Elelctrochem Co Ltd | Optical isolator and its production |
-
1989
- 1989-10-17 JP JP12101789U patent/JPH0360312U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6425119A (en) * | 1987-07-22 | 1989-01-27 | Matsushita Electric Industrial Co Ltd | Manufacture of optical isolator |
| JPH01200223A (en) * | 1988-02-04 | 1989-08-11 | Fuji Elelctrochem Co Ltd | Optical isolator and its production |