JPS5576322A - Light isolator - Google Patents
Light isolatorInfo
- Publication number
- JPS5576322A JPS5576322A JP14863878A JP14863878A JPS5576322A JP S5576322 A JPS5576322 A JP S5576322A JP 14863878 A JP14863878 A JP 14863878A JP 14863878 A JP14863878 A JP 14863878A JP S5576322 A JPS5576322 A JP S5576322A
- Authority
- JP
- Japan
- Prior art keywords
- light
- polarizing
- faraday rotation
- polarizer
- elements
- 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
Abstract
PURPOSE: To obtain the unidirectional light isolator of less transmission losses to the light including full-direction polarization components by combining the 1st, 2nd polarizers and the 1st, 2nd Faraday rotation elements.
CONSTITUTION: The polarizing elements comprising being formed by affixing calcite or the like and double-refracting the incident light having full-direction polarization components to two mutually orthogonally intersecting light beams are used. The light having transmitted through the upper portion of the 1st polarizing element 11 contains only the polarizing component in the horizontal direction (Y direction) which is then reflected by a mirror A and transmits through the 1st Faraday rotation element 12A, by which its polarization direction is rotated 45°. This light enters the 2nd polarizer 14. On the other hand, the light having transmitted through the lower portion of the 1st polarizer 11 has the polarizing component in the vertical direction (X direction) which then goes through the 2nd Faraday rotation element 12B, mirror 13B, by which its polarization direction is rotated 45°. This light enters the 2nd polarizer 14. Both lights are combined to one light beam. Here, the light advancing in the direction opposite from the above is cut off by the polarizing elements and Faraday rotation elements of the abovementioned combination.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14863878A JPS5576322A (en) | 1978-12-02 | 1978-12-02 | Light isolator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14863878A JPS5576322A (en) | 1978-12-02 | 1978-12-02 | Light isolator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5576322A true JPS5576322A (en) | 1980-06-09 |
Family
ID=15457259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14863878A Pending JPS5576322A (en) | 1978-12-02 | 1978-12-02 | Light isolator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5576322A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5755547A (en) * | 1980-09-22 | 1982-04-02 | Olympus Optical Co Ltd | Information reader of photomagnetic recording medium |
JPS57100410A (en) * | 1980-12-15 | 1982-06-22 | Fujitsu Ltd | Optical isolator |
JPS6138926A (en) * | 1984-07-30 | 1986-02-25 | Yamaichi Electric Mfg Co Ltd | Optical modulator |
US5559633A (en) * | 1993-11-12 | 1996-09-24 | Lucent Technologies Inc. | Optical isolator with reduced relative walk-off |
-
1978
- 1978-12-02 JP JP14863878A patent/JPS5576322A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5755547A (en) * | 1980-09-22 | 1982-04-02 | Olympus Optical Co Ltd | Information reader of photomagnetic recording medium |
JPH0115932B2 (en) * | 1980-09-22 | 1989-03-22 | Olympus Optical Co | |
JPS57100410A (en) * | 1980-12-15 | 1982-06-22 | Fujitsu Ltd | Optical isolator |
JPS6158809B2 (en) * | 1980-12-15 | 1986-12-13 | Fujitsu Ltd | |
JPS6138926A (en) * | 1984-07-30 | 1986-02-25 | Yamaichi Electric Mfg Co Ltd | Optical modulator |
US5559633A (en) * | 1993-11-12 | 1996-09-24 | Lucent Technologies Inc. | Optical isolator with reduced relative walk-off |
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