JPS55110443A - Selection unit for optical signal - Google Patents
Selection unit for optical signalInfo
- Publication number
- JPS55110443A JPS55110443A JP1812779A JP1812779A JPS55110443A JP S55110443 A JPS55110443 A JP S55110443A JP 1812779 A JP1812779 A JP 1812779A JP 1812779 A JP1812779 A JP 1812779A JP S55110443 A JPS55110443 A JP S55110443A
- Authority
- JP
- Japan
- Prior art keywords
- optical signal
- wave length
- photo
- electric
- optical
- 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
- 230000003287 optical effect Effects 0.000 title abstract 8
- 239000010409 thin film Substances 0.000 abstract 2
- 239000013307 optical fiber Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/03—WDM arrangements
- H04J14/0305—WDM arrangements in end terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To reduce power consumption, by transmitting the optical signal multiplexing two or more wave lengths into the thin film Fabry-Pe rot rot type optical band pass filter and changing the incident angle of optical signal to select the optical signal. CONSTITUTION:Different video signals CH1-CH4 are respectively applied to the electric-photo converters 1-4 of the transmitter 31, the signals CH1-CH4 are converted into optical signal and fed to the photo synthesizer 5 to multiplex the wave length of optical signal. This optical signal in wave length multiplex is transmitted to the receiver 32 via the optical fiber L, and wave length selection is made by giving it to the thin film Fabry-Pe rot type BPF6, it is converted into electric signal at the photo-electric converter 8 to picture the desired program on TV. The BPF is controlled with the output of the drive control circuit 7 to change the center wave length under passing incident to BPF6 and the power consumption can be reduced with the output of the band of passing center wave length desired.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1812779A JPS55110443A (en) | 1979-02-19 | 1979-02-19 | Selection unit for optical signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1812779A JPS55110443A (en) | 1979-02-19 | 1979-02-19 | Selection unit for optical signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110443A true JPS55110443A (en) | 1980-08-25 |
Family
ID=11962929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1812779A Pending JPS55110443A (en) | 1979-02-19 | 1979-02-19 | Selection unit for optical signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110443A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0222631A (en) * | 1988-07-11 | 1990-01-25 | Hitachi Ltd | Detector for frequency multiplex optical communication |
JP2009504095A (en) * | 2005-08-02 | 2009-01-29 | アイティーティー マニュファクチャリング エンタープライジーズ, インコーポレイテッド | Communication transceiver architecture |
-
1979
- 1979-02-19 JP JP1812779A patent/JPS55110443A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0222631A (en) * | 1988-07-11 | 1990-01-25 | Hitachi Ltd | Detector for frequency multiplex optical communication |
JP2875537B2 (en) * | 1988-07-11 | 1999-03-31 | 株式会社日立製作所 | Frequency multiplexing optical communication detector |
JP2009504095A (en) * | 2005-08-02 | 2009-01-29 | アイティーティー マニュファクチャリング エンタープライジーズ, インコーポレイテッド | Communication transceiver architecture |
JP4753444B2 (en) * | 2005-08-02 | 2011-08-24 | アイティーティー マニュファクチャリング エンタープライジーズ, インコーポレイテッド | Communication transceiver architecture |
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