JPS6451734A - Bidirectional coherent light communication system - Google Patents
Bidirectional coherent light communication systemInfo
- Publication number
- JPS6451734A JPS6451734A JP62208467A JP20846787A JPS6451734A JP S6451734 A JPS6451734 A JP S6451734A JP 62208467 A JP62208467 A JP 62208467A JP 20846787 A JP20846787 A JP 20846787A JP S6451734 A JPS6451734 A JP S6451734A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical
- transmission line
- station
- light source
- 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 Communication System (AREA)
Abstract
PURPOSE:To simplify the constitution of a station by applying the detection of a slave station by a photodetector receiving a signal light from a master station and induced Brillouin scattering light caused in an optical transmission line by a signal light from a transmission light source of a slave station. CONSTITUTION:An output light of a transmission light source 12 in a master station is modulated directly by a drive power supply and sent to an optical transmission line 18 via an optical mixer 16. A local oscillated light from a local oscillation light source 20 is mixed with a phase modulation light from the slave station by the optical mixer 16, led to a photodetector 22 and sent to a demodulation circuit 26 via an amplifier 24 and the original signal is restored. The radiated light from the transmission light source 32 of the slave station is sent to the optical transmission line 18 via a phase modulator 34 and an optical mixer 36. The light caused by the included Brillouin scattering in the transmission line 18 is inputted to the photodetector 38 via the optical mixer 36 together with the modulation light from the master station and the original signal is recovered by the demodulator 38.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62208467A JPS6451734A (en) | 1987-08-21 | 1987-08-21 | Bidirectional coherent light communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62208467A JPS6451734A (en) | 1987-08-21 | 1987-08-21 | Bidirectional coherent light communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6451734A true JPS6451734A (en) | 1989-02-28 |
Family
ID=16556663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62208467A Pending JPS6451734A (en) | 1987-08-21 | 1987-08-21 | Bidirectional coherent light communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6451734A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022174656A1 (en) * | 2021-02-18 | 2022-08-25 | 中兴通讯股份有限公司 | Coherent detection method, apparatus, and system |
-
1987
- 1987-08-21 JP JP62208467A patent/JPS6451734A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022174656A1 (en) * | 2021-02-18 | 2022-08-25 | 中兴通讯股份有限公司 | Coherent detection method, apparatus, and system |
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