| 摘要 |
A fiber-optic access system for subscriber optical communication adopting star type topology in an optical fiber network includes a central office (1), a plurality of optical network units (5-20), an optical interface (3,4), and a signal recognition/reproduction and clock extraction IC (29). The optical interface is provided in the central office (1) and includes an array optical transmission module (3) as a package unit accommodating a plurality of light sources and a plurality of output fiber terminals, and an array optical reception module (4) as a package unit accommodating a plurality of optical sensors and a plurality of input fiber terminals. The signal recognition/reproduction and clock extraction IC (29) is provided to each channel of the array optical reception module (4). The access system provided is of a scale comparable to that of a central office side optical interface of PDS and wide band characteristics comparable to those of a single star type system. <MATH> |
