| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical signal distributer which does not require expensive optical parts for each subscriber resulting in reducing a cost of a subscriber customer station equipment, comparing to a conventional optical image distributer method in which optical signal light is sent to subscriber stations. SOLUTION: Since the optical signal splitter comprises a wavelength demultiplexer 60 for splitting optical signals sent from a center station 10 into down image signal light 104 and down data signal light 104, an image signal photoelectricity converter 51 for photoelectrically converting the down image signal light 103 split by the wavelength demultiplexing means 60, and an electric signal distributer 52 for distributing electric signals from the image signal photoelectricity converter 51 to a plurality of subscriber stations 30a, 30b, it is possible to eliminate optical parts included in the equipments of each subscriber station 30a, 30b. |
