OPTICAL TRANSMISSION SYSTEM AND METHOD FOR SHARING OPTICAL FIBER CABLE BETWEEN HYBRID FIBER COAXIAL NETWORK AND COARSE WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK

摘要

The invention sharer in the optical path and Hybrid fiber-coaxial optical wavelength multiplexing transmission network in order to provide efficient Internet services relates to an optical transmission system and a method for. And an optical transmission system of the present invention CMTS; Multiplexing together the different wavelength of the optical signal to output to the optical communication line, and multiplexed with the OLT comprising a multiplexer / demultiplexer for outputting the optical signal demultiplexed to be input through the optical communication lines; Receiving an RF signal from the CMTS, and transmits the RF signal to the photoelectric conversion, and the optical signal to the OLT, or the optical transceiver is an optical signal from the OLT to the photoelectric conversion to an RF signal transmitted to the CMTS; Via the optical line receiving the multiplexed optical signal and transmitting the optical signal from the OLT to the ONU demultiplexer for CWDM-PON or ONU for HFC or multiplexes the optical signal received from the ONU for a CWDM-PON or ONU for HFC comprising: a light splitting device for transmitting to the OLT, an optical transceiver with a portion of the optical signal and the transmission and reception of optical signals having different wavelengths between the OLT, light splitting device transmits an optical signal having a predetermined center wavelength of the ONU for HFC or HFC for receiving from the ONU, and transmits a predetermined wavelength of an optical signal having a center wavelength other than the ONU for CWDM-PON, or is characterized in that it received from the ONU for a CWDM-PON. Accordingly, in one of the optical transmission system by sharing the optical line transmitting data by the CWDM-PON system and HFC way it is possible independently.