Title:
SYSTEM FOR TRANSMITTING DIGITAL INFORMATION THROUGH OPTICAL LINK HAVING OPTICAL-AMPLIFIER TYPE RELAY
Document Type and Number:
Japanese Patent JPH066307
Kind Code:
A
Abstract:
PURPOSE: To improve the receiving error rate of a system by providing an error-correcting coding means in a transmitting end equipment and providing an error-correcting decoding means in a receiving end equipment. CONSTITUTION: The transmitting end equipment 1 has the errorcorrecting coding means 4 which receives digital information IE to be transmitted. The transmitting end equipment 1 further provides an optical transmitter 5 for receiving information IEC from the means 4 and transmitting light information SE via an optical link 6. The relay 3 may be a light amplifier using a doped fiber or a semiconductor amplifier, for example. The receiving end equipment 2 includes an optical fiber 7 for eliminating an optical noise generated by the light amplifier in order to increase a signal-to-noise ratio. Light information SR transmitted from the optical fiber 7 is transmitted to the optical receiver 8, and this optical receiver 8 transmits digital information IRC. This information is transmitted to the error-correcting decoding means 9 for operating according to a code selected with respect to the means 4.
Inventors:
SUTEFUAN MORAN
FURANSOWAAGUZABIE ORIBIE
JIYANNRIYUTSUKU PAMAARU
FURANSOWAAGUZABIE ORIBIE
JIYANNRIYUTSUKU PAMAARU
Application Number:
JP3899093A
Publication Date:
January 14, 1994
Filing Date:
February 26, 1993
Export Citation:
Assignee:
CIT ALCATEL
International Classes:
H04B10/00; H04B10/17; H04L1/00; (IPC1-7): H04B10/00; H04L1/00
Domestic Patent References:
| JPS62166630A | 1987-07-23 | |||
| JPH01268233A | 1989-10-25 | |||
| JPH024036A | 1990-01-09 | |||
| JPH0271626A | 1990-03-12 |
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)
Next Patent: LIGHT RECEPTION AGC CIRCUIT