JPS54153652A - Optical branching filter - Google Patents
Optical branching filterInfo
- Publication number
- JPS54153652A JPS54153652A JP6252378A JP6252378A JPS54153652A JP S54153652 A JPS54153652 A JP S54153652A JP 6252378 A JP6252378 A JP 6252378A JP 6252378 A JP6252378 A JP 6252378A JP S54153652 A JPS54153652 A JP S54153652A
- Authority
- JP
- Japan
- Prior art keywords
- light
- face
- prism
- lens
- branching filter
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29371—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion
- G02B6/29373—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating principle based on material dispersion utilising a bulk dispersive element, e.g. prism
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
PURPOSE:To achieve miniaturization of the optical branching filter by making use of the total reflection of a prism which uses materials of different refractive indices depending upon the wavelengths of light. CONSTITUTION:Lights f1, f2 from a light source 1 are passed through a micro- lens 3 through an optical fiber 2a and are radiated to a prism 6 which has respectively different refractive indices for the frequencies f1, f2 of the light. This light is made parallel rays 4 by the lens 3 and the parallel rays arrive at the face 7 of the prism 6. Here, if the angle 8 of the face 7 and rays 4 is suitably selected, the greater portion of the light of the frequency f1 refracts on the face 7 and enters the optical fiber 2b, The light of the frequency f2 is totally reflected by the face 7, is condensed by the lens 3 and enters the optical fiber 2c. In this way, the branching filter which is capable of separating the light of different frequencies f1, f 2, is obtained integratedly in small size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6252378A JPS54153652A (en) | 1978-05-24 | 1978-05-24 | Optical branching filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6252378A JPS54153652A (en) | 1978-05-24 | 1978-05-24 | Optical branching filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54153652A true JPS54153652A (en) | 1979-12-04 |
Family
ID=13202621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6252378A Pending JPS54153652A (en) | 1978-05-24 | 1978-05-24 | Optical branching filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54153652A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730883A (en) * | 1983-11-28 | 1988-03-15 | Kei Mori | Photoradiator including light control device |
| JPH01141431U (en) * | 1988-03-23 | 1989-09-28 |
-
1978
- 1978-05-24 JP JP6252378A patent/JPS54153652A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4730883A (en) * | 1983-11-28 | 1988-03-15 | Kei Mori | Photoradiator including light control device |
| JPH01141431U (en) * | 1988-03-23 | 1989-09-28 |
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