Optical coaxial hybrid transmission system

摘要

An optical coaxial hybrid transmission system capable of quickly achieving high-speed Internet access at low cost without making any substantial changes to a transmission path of the existing system is provided. In this system, m-channel communications signals having frequencies of f1 to fm (Hz) corresponding to micro-cells (51) are converted into optical signals having different wavelengths by communications signal optical transmitters (102). These optical signals are wavelength-multiplexed by a communications signal wavelength multiplexer (103), and then wavelength-multiplexed by a video/communications signal wavelength multiplexer (104) with an optical signal modulated with a video signal. The resultant wavelength-multiplexed optical signal is transmitted to a node (30). In the node (30), the wavelength-multiplex optical signal is demultiplexed, and the video signal and the communications signals are frequency-multiplexed for transmission to the corresponding micro-cells (51). <IMAGE>