JPS6431133A - Wavelength selection switch - Google Patents
Wavelength selection switchInfo
- Publication number
- JPS6431133A JPS6431133A JP18818887A JP18818887A JPS6431133A JP S6431133 A JPS6431133 A JP S6431133A JP 18818887 A JP18818887 A JP 18818887A JP 18818887 A JP18818887 A JP 18818887A JP S6431133 A JPS6431133 A JP S6431133A
- Authority
- JP
- Japan
- Prior art keywords
- electric field
- wavelength
- intersection
- lambdaj
- deltan0
- 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
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
PURPOSE:To extract an optional wavelength selectively from plural multiplexed different wavelengths by forming a 1st optical waveguide and (n) optical waveguides which have a wider band gap than a multiple quantization well and nearly equal effective refractive indexes. CONSTITUTION:When an electric field Ej is applied to the total reflecting surface (MQW reflection part) of an (i)th intersection part, the angles between an optical waveguide 14 for input and the MQW reflection parts 11-13 are so set as to cause total reflection at a rate (-DELTAn0/n) of refractive index variation. Here, a wavelength lambdaj with which (-DELTAn0/n) is obtained at the time of the electric field Ej can be selected by the refractive index variation of the MQW by selecting (-DELTAn0/n) properly. Therefore, only a light signal with the wavelength lambdaj is reflected totally at the (i)th intersection part and led out of the intersection waveguide selectively. Light signals with other wavelengths are passed as they are because the total reflection conditions are not satisfied by the electric field Ej. Further, electric field intensity different from the Ej is applied at other intersection parts to lead out signal light with a wavelength other than lambdaj which satisfies the total reflection conditions.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18818887A JPS6431133A (en) | 1987-07-27 | 1987-07-27 | Wavelength selection switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18818887A JPS6431133A (en) | 1987-07-27 | 1987-07-27 | Wavelength selection switch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431133A true JPS6431133A (en) | 1989-02-01 |
Family
ID=16219307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18818887A Pending JPS6431133A (en) | 1987-07-27 | 1987-07-27 | Wavelength selection switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431133A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01161204A (en) * | 1987-12-18 | 1989-06-23 | Hitachi Ltd | Optical waveguide |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154821A (en) * | 1982-03-11 | 1983-09-14 | Nec Corp | Wavelength selective type optical switch matrix |
JPS60252329A (en) * | 1984-05-29 | 1985-12-13 | Hitachi Ltd | Optical switch |
-
1987
- 1987-07-27 JP JP18818887A patent/JPS6431133A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154821A (en) * | 1982-03-11 | 1983-09-14 | Nec Corp | Wavelength selective type optical switch matrix |
JPS60252329A (en) * | 1984-05-29 | 1985-12-13 | Hitachi Ltd | Optical switch |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01161204A (en) * | 1987-12-18 | 1989-06-23 | Hitachi Ltd | Optical waveguide |
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