DEVICE FOR SHARING AN OPTICAL CABLE IN A MOBILE COMMUNICATION NETWORK, SPECIALLY IN REFERENCE TO TRANSMITTING AN OPTICAL WAVELENGTH TO A SINGLE OPTICAL CABLE BY USING A CWDM(COARSE WAVELENGTH DIVISION MULTIPLEXING) METHOD

摘要

PURPOSE: A device for sharing an optical cable in a mobile communication network is provided to share an optical cable used in an optical relay system, thereby magnifying usage efficiency of the optical cable while reducing a construction cost or an installation cost of the optical cable. CONSTITUTION: A master optical share unit(30) combines the first forward optical signal with the second forward optical signal applied from the first master system(10) and the second master system(20), respectively, transmits the combined signals through an optical cable(100), and divides combinations of the first reverse optical signal and the second reverse optical signal transmitted through the optical cable(100) to send the divided signals to the first and second master systems(10,20), respectively. A remote optical share unit(40) divides the combinations of the first and second forward optical signals to send the divided signals to the first and second remote systems(15,25), respectively, and combines the first reverse optical signal with the second reverse optical signal applied from the first and second remote systems(15,25), respectively, then sends the combined signals to the master optical share unit(30) through the optical cable(100).