JPS574022A - Waveguide type magnetooptic fiber optics element - Google Patents
Waveguide type magnetooptic fiber optics elementInfo
- Publication number
- JPS574022A JPS574022A JP7742080A JP7742080A JPS574022A JP S574022 A JPS574022 A JP S574022A JP 7742080 A JP7742080 A JP 7742080A JP 7742080 A JP7742080 A JP 7742080A JP S574022 A JPS574022 A JP S574022A
- Authority
- JP
- Japan
- Prior art keywords
- effect
- manner
- film
- strains
- fiber optics
- 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
- G02F1/095—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 in an optical waveguide structure
- G02F1/0955—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 in an optical waveguide structure used as non-reciprocal devices, e.g. optical isolators, circulators
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To obtain a nonreciprocal fiber optics element which is easy to integrate through combination use of photoelastic effect and Faraday effect under ordinary temp. by sticking a dielectric film at a high temp. in a manner as to produce residual thermal shearing strains on a thin waveform directional coupling element utilizing magnetooptic effect. CONSTITUTION:An yttrium iron garnet (YIG) epitaxial crystal film 2 is grown at partially varying thicknesses on a garnet single crystal substrate 1 of gadolinium gallium garnet (GGG) or the like, thereby forming optical waveguides 3, 4 in a manner that their respective widths W1, W2 attain W1<W2. A dielectric film 5 of SiO2 or the like is then formed by a sputtering method or the like at a high temp. of about 500 deg.C, thereafter, it is so provided as to cover the waveguide 4 by a photolithographic method. Thereby, residual thermal shearing strains are produced in the film 4, and the photoelastic effect for these strains and the Faraday effect of the other layer 2 act in an offsetting manner, thereby causing nonreciprocity. In this way, the element which is small is size, in easy to integrate and has high adaptability for isolators and circulators is easily obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7742080A JPS574022A (en) | 1980-06-09 | 1980-06-09 | Waveguide type magnetooptic fiber optics element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7742080A JPS574022A (en) | 1980-06-09 | 1980-06-09 | Waveguide type magnetooptic fiber optics element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS574022A true JPS574022A (en) | 1982-01-09 |
Family
ID=13633459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7742080A Pending JPS574022A (en) | 1980-06-09 | 1980-06-09 | Waveguide type magnetooptic fiber optics element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS574022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164932U (en) * | 1983-04-15 | 1984-11-05 | 帝人株式会社 | Tape running test machine |
| US4781424A (en) * | 1986-07-28 | 1988-11-01 | Nippon Telegraph And Telephone Corporation | Single mode channel optical waveguide with a stress-induced birefringence control region |
-
1980
- 1980-06-09 JP JP7742080A patent/JPS574022A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164932U (en) * | 1983-04-15 | 1984-11-05 | 帝人株式会社 | Tape running test machine |
| JPH0433539Y2 (en) * | 1983-04-15 | 1992-08-11 | ||
| US4781424A (en) * | 1986-07-28 | 1988-11-01 | Nippon Telegraph And Telephone Corporation | Single mode channel optical waveguide with a stress-induced birefringence control region |
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