JPH0367313U - - Google Patents
Info
- Publication number
- JPH0367313U JPH0367313U JP12855089U JP12855089U JPH0367313U JP H0367313 U JPH0367313 U JP H0367313U JP 12855089 U JP12855089 U JP 12855089U JP 12855089 U JP12855089 U JP 12855089U JP H0367313 U JPH0367313 U JP H0367313U
- Authority
- JP
- Japan
- Prior art keywords
- polarization separation
- polarization
- degrees
- separation element
- optical axis
- 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
- 230000010287 polarization Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Description
第１図は本考案の光アイソレータの一実施例の
構成図、第２図は従来の光アイソレータの構成図
である。
１……半導体レーザ、２……レンズ、３……第
１のルチル平行平板、４……第１のフアラデー回
転子、５……偏光ビームスプリツター、６……第
２のフアラデー回転子、７……第２のルチル平行
平板、８……単一モード光フアイバ、９……常光
成分の反射戻り光経路、１０……異常光成分の反
射戻り光経路、１１……第１の偏光ビームスプリ
ツター、１２……第２の偏光ビームスプリツター
、１３……第３の偏光ビームスプリツター、１４
……磁石。
FIG. 1 is a block diagram of an embodiment of the optical isolator of the present invention, and FIG. 2 is a block diagram of a conventional optical isolator. DESCRIPTION OF SYMBOLS 1... Semiconductor laser, 2... Lens, 3... First rutile parallel plate, 4... First Faraday rotator, 5... Polarizing beam splitter, 6... Second Faraday rotator, 7 ...Second rutile parallel plate, 8...Single mode optical fiber, 9...Reflection return optical path of ordinary light component, 10...Reflection return optical path of extraordinary light component, 11...First polarization beam splitter 12...Second polarizing beam splitter, 13...Third polarizing beam splitter, 14
……magnet.
Claims (1)
子と、４５度偏光方向を回転する第１のフアラデ
ー回転子と、前記第１の偏光分離素子に対して光
学軸を４５度回転して配置した第２の偏光分離素
子と、４５度偏光方向を回転する第２のフアラデ
ー回転子と、前記第２の偏光分離素子に対して光
学軸を４５度回転して配置した第３の偏光分離素
子と、前記第１と第２のフアラデー回転子に磁場
を与える磁石よりなる光アイソレータにおいて、
前記第１と第３の偏光分離素子として複屈折性の
平行平板を用い、前記第２の偏光分離素子として
特定方向の偏光のみ透過し他を反射除去する偏光
ビームスプリツターを用いたことを特徴とする光
アイソレータ。 a first polarization separation element into which light emitted from the light emitting element is incident; a first Faraday rotator that rotates the polarization direction by 45 degrees; and an optical axis arranged with the optical axis rotated by 45 degrees with respect to the first polarization separation element. a second Faraday rotator that rotates the polarization direction by 45 degrees, and a third polarization separation element that is arranged with its optical axis rotated by 45 degrees with respect to the second polarization separation element. and an optical isolator comprising a magnet that applies a magnetic field to the first and second Faraday rotators,
A birefringent parallel plate is used as the first and third polarization separation elements, and a polarization beam splitter is used as the second polarization separation element, which transmits only polarized light in a specific direction and reflects and removes the others. optical isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12855089U JPH0367313U (en) | 1989-11-02 | 1989-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12855089U JPH0367313U (en) | 1989-11-02 | 1989-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0367313U true JPH0367313U (en) | 1991-07-01 |
Family
ID=31676251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12855089U Pending JPH0367313U (en) | 1989-11-02 | 1989-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0367313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023007545A1 (en) * | 2021-07-26 | 2023-02-02 | ギガフォトン株式会社 | Ultraviolet laser device and method for producing electronic device |
-
1989
- 1989-11-02 JP JP12855089U patent/JPH0367313U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023007545A1 (en) * | 2021-07-26 | 2023-02-02 | ギガフォトン株式会社 | Ultraviolet laser device and method for producing electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4375910A (en) | Optical isolator | |
| GB1368598A (en) | Light beam polarization modulator | |
| WO2015081806A1 (en) | Wavelength-independent and temperature-independent faraday rotating mirror | |
| JP2943436B2 (en) | Semiconductor laser module | |
| JPH0724323B2 (en) | Semiconductor laser device | |
| JPH0367313U (en) | ||
| US5760946A (en) | Optical isolator, faraday rotator suitable for use in the same, and laser diode module incorporating the same | |
| JP3161885B2 (en) | Optical isolator | |
| JPS61121027A (en) | Optical isolator | |
| JPS57168221A (en) | Optical switch | |
| JPH05313094A (en) | Optical isolator | |
| JP2929222B2 (en) | Light switch | |
| EP0415444A2 (en) | Optical isolator | |
| JPH0391715A (en) | Optical isolator | |
| JPH09325215A (en) | Polarization beam splitter and module therefor | |
| JPS6030734Y2 (en) | High reverse loss compact optical isolator | |
| JPS5931067U (en) | Polarization preserving optical fiber type magnetic field sensor | |
| JPH05341229A (en) | Optical isolator | |
| JPH02138715U (en) | ||
| JPH03107915A (en) | Optical isolator | |
| JPH0219113U (en) | ||
| JPH03197918A (en) | Polarizer integrated type faraday rotator and optical isolator | |
| JPS61122625A (en) | Optical isolator | |
| JPH03135512A (en) | Faraday rotator | |
| JPH03125321U (en) |