JPS5541468A - Light branching filter device - Google Patents
Light branching filter deviceInfo
- Publication number
- JPS5541468A JPS5541468A JP11546378A JP11546378A JPS5541468A JP S5541468 A JPS5541468 A JP S5541468A JP 11546378 A JP11546378 A JP 11546378A JP 11546378 A JP11546378 A JP 11546378A JP S5541468 A JPS5541468 A JP S5541468A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical fiber
- wavelength
- component
- sent
- 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 prevent mixture of different wavelength components, by taking out the light in each wavelength component through filter after distributing the light propagated through one optical fiber or optical fiber bundle in the light distributing section. CONSTITUTION:A light 6 of wavelengths lambda1 and lambda2 propagated through an optical fiber 3 is distributed into an optical fiber 4 and an optical fiber 5 in a light distributing section 11. The wavelength lambda1 component of the light 12 sent into the optical fiber 14, while the wavelength lambda2 component of the light 13 sent into the optical fiber 5 is picked up by a photo detector 10 through a low pass filter 15. Though the wave 4 is picked up by a photo detector 9 through a high pass filter length characteristics of both filters 14, 15 have slight reflection properties at the transmission wavelength, the light of wavelength lambda1 component slightly reflected by the high pass filter 14 is not sent into the optical fiber 5 in the light distributing section 11, and the light of wavelength lambda2 component slightly reflected by the low pass filter 15 is not sent into the optical fiber 4. Therefore, only the light of wavelength lambda1 component enters the photo detector 9, while only the light of wavelength lambda2 component enters the photo detector 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11546378A JPS5541468A (en) | 1978-09-20 | 1978-09-20 | Light branching filter device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11546378A JPS5541468A (en) | 1978-09-20 | 1978-09-20 | Light branching filter device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5541468A true JPS5541468A (en) | 1980-03-24 |
Family
ID=14663155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11546378A Pending JPS5541468A (en) | 1978-09-20 | 1978-09-20 | Light branching filter device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5541468A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5726811A (en) * | 1980-06-03 | 1982-02-13 | Optical Coating Laboratory Inc | Non-polarized thin film edge filter and optical fiber communication system used therewith |
JPS5874078U (en) * | 1981-11-11 | 1983-05-19 | 株式会社東芝 | refrigerator |
JPS60107006A (en) * | 1983-11-14 | 1985-06-12 | Fujitsu Ltd | Optical filter device |
US4878731A (en) * | 1988-02-19 | 1989-11-07 | Amp Incorporated | Fiber optic connector including ferrule with filter isolator |
-
1978
- 1978-09-20 JP JP11546378A patent/JPS5541468A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5726811A (en) * | 1980-06-03 | 1982-02-13 | Optical Coating Laboratory Inc | Non-polarized thin film edge filter and optical fiber communication system used therewith |
JPS5874078U (en) * | 1981-11-11 | 1983-05-19 | 株式会社東芝 | refrigerator |
JPS60107006A (en) * | 1983-11-14 | 1985-06-12 | Fujitsu Ltd | Optical filter device |
US4878731A (en) * | 1988-02-19 | 1989-11-07 | Amp Incorporated | Fiber optic connector including ferrule with filter isolator |
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