JPS56137327A - Optical circulator - Google Patents
Optical circulatorInfo
- Publication number
- JPS56137327A JPS56137327A JP4132180A JP4132180A JPS56137327A JP S56137327 A JPS56137327 A JP S56137327A JP 4132180 A JP4132180 A JP 4132180A JP 4132180 A JP4132180 A JP 4132180A JP S56137327 A JPS56137327 A JP S56137327A
- Authority
- JP
- Japan
- Prior art keywords
- polarization
- polarizing
- rotated
- fiber
- light
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/06—Polarisation independent
Abstract
PURPOSE:To obtain an optical circulator independent of the polarization of incident light by separating light into linear polarizations having polarizing faces perpendicular to each other and carrying out processing. CONSTITUTION:Light emitted from optical fiber 11 passes through lens 15 and is separated into P polarization parallel to the incident face and S polarization perpendicular to it with polarizing and separating element 19. The P polarization is transmitted, and the S polarization is reflected. The polarizing face of the P polarization is then rotated with Faraday effect element 21 and 45 deg.C optical rotation element 22 by 45 deg.C each, that is, 90 deg.C, and the polarization is reflected by polarizing and separating element 20 toward optical fiber 12 as S polarization. The polarizing face of said S polarization is also rotated by 90 deg.C with elements 21, 22, and the polarization enters fiber 12 as P polarization to element 20. On the other hand, light emerging from fiber 12 is not polarized and rotated with elements 22, 21 and couples with optical fiber 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4132180A JPS56137327A (en) | 1980-03-31 | 1980-03-31 | Optical circulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4132180A JPS56137327A (en) | 1980-03-31 | 1980-03-31 | Optical circulator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56137327A true JPS56137327A (en) | 1981-10-27 |
Family
ID=12605246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4132180A Pending JPS56137327A (en) | 1980-03-31 | 1980-03-31 | Optical circulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56137327A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223975A (en) * | 1988-11-11 | 1993-06-29 | Fujitsu Limited | Polarization beam coupler including a splitter for producing an output monitor beam |
US5319483A (en) * | 1992-12-04 | 1994-06-07 | Williams Telecommunications Group, Inc. | Polarization independent low cross-talk optical circulator |
US5499132A (en) * | 1992-05-13 | 1996-03-12 | Matsushita Electric Industrial Co., Ltd. | Optical passive components |
US6487014B2 (en) * | 1996-08-12 | 2002-11-26 | National Research Council Of Canada | High isolation optical switch, isolator or circulator having thin film polarizing beam-splitters |
-
1980
- 1980-03-31 JP JP4132180A patent/JPS56137327A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5223975A (en) * | 1988-11-11 | 1993-06-29 | Fujitsu Limited | Polarization beam coupler including a splitter for producing an output monitor beam |
US5499132A (en) * | 1992-05-13 | 1996-03-12 | Matsushita Electric Industrial Co., Ltd. | Optical passive components |
US5319483A (en) * | 1992-12-04 | 1994-06-07 | Williams Telecommunications Group, Inc. | Polarization independent low cross-talk optical circulator |
US6487014B2 (en) * | 1996-08-12 | 2002-11-26 | National Research Council Of Canada | High isolation optical switch, isolator or circulator having thin film polarizing beam-splitters |
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