JPS55145445A - Optical wavelength multiple transmitting system - Google Patents
Optical wavelength multiple transmitting systemInfo
- Publication number
- JPS55145445A JPS55145445A JP5251079A JP5251079A JPS55145445A JP S55145445 A JPS55145445 A JP S55145445A JP 5251079 A JP5251079 A JP 5251079A JP 5251079 A JP5251079 A JP 5251079A JP S55145445 A JPS55145445 A JP S55145445A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- wavelength
- circuit
- signal
- band
- 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 realize the multiple transmitting system using the single-mode optical fiber, by providing the optical wavelength scattering/equalizing circuit which gives the equalization to the wavelength scattering of the transmission line at the transmitter or receiver side and then securing the identical transmission velocity for each wavelength.
CONSTITUTION: The signal sent from signal input terminal 1 is supplied to modulating drive circuit 2, and the modulation is given to light sources 3 and 4 having the different wavelengths by the output of circuit 2. Then the optical signals are compounded through wavelength multiple branching/compounding optical circuit 5 to be transmitted to single-mode optical fiber transmission line 6 in the form of the optical signal of the wavelength multiplexing. The optical signals sent from line 6 are branched into each wavelength through circuit 5, and the signal in the 1.3m band receives the direct optical detection by optical detector 7 to be sent to receiving circuit 8. And the signal in the 1.5m band is detected at detector 7 and via 1.5m band optical wavelength scattering/equalizing unit 16 to be then applied to receiving circuit 8. Then the signals are delivered through reception signal output terminal 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5251079A JPS55145445A (en) | 1979-05-01 | 1979-05-01 | Optical wavelength multiple transmitting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5251079A JPS55145445A (en) | 1979-05-01 | 1979-05-01 | Optical wavelength multiple transmitting system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55145445A true JPS55145445A (en) | 1980-11-13 |
Family
ID=12916719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5251079A Pending JPS55145445A (en) | 1979-05-01 | 1979-05-01 | Optical wavelength multiple transmitting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55145445A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06216845A (en) * | 1990-05-22 | 1994-08-05 | Hughes Aircraft Co | Long-distance two-way optical fiber communication link |
JPH09116493A (en) * | 1995-10-23 | 1997-05-02 | Nec Corp | Wavelength multiplex transmission system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50105002A (en) * | 1974-01-18 | 1975-08-19 | ||
JPS5342052A (en) * | 1976-09-28 | 1978-04-17 | Nec Corp | Optical signal detector |
-
1979
- 1979-05-01 JP JP5251079A patent/JPS55145445A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50105002A (en) * | 1974-01-18 | 1975-08-19 | ||
JPS5342052A (en) * | 1976-09-28 | 1978-04-17 | Nec Corp | Optical signal detector |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06216845A (en) * | 1990-05-22 | 1994-08-05 | Hughes Aircraft Co | Long-distance two-way optical fiber communication link |
JPH09116493A (en) * | 1995-10-23 | 1997-05-02 | Nec Corp | Wavelength multiplex transmission system |
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