| 摘要 |
<p>A FIBRE NETWORK HAVING A PASSIVE OPTICAL COUPLING ELEMENT FOR OPTOELECTRONIC TRANSMISSION OF DATA BETWEEN ADDRESSABLE SUBSCRIBER STATIONS A fibre network is disclosed for the optoelectronic transmission data between and among a plurality of subscriber stations, each station having a transmitter and a receiver. A specific address code is allocated to each transmitter and its associated receiver, and the information content of the individual subscriber stations is sample cyclically by a common addressing unit. The fibre network has n junction points, whereby n?1, and the individual fibre conductors lead from these junction points to the connected subscriber stations, in which the junction points contain passive coupling elements in the form of a solid, light-conducting core having opposing end faces. The fibres leading from the transmitters and from the addressing unit to a junction point are optically connected to one end face of a coupling element, and the outgoing fibres leading to the receivers are optically connected to the opposite end face of the coupling element. The length of the coupling element is such that the active surface area of the light-transmitting fibres coupled to the coupling element are individually capable of fully illuminating all of the receiver fibres connected to the opposite end face of the coupling element. In an alternative embodiment, the fibres leading from both transmitters and receivers are optically connected to the same face of the coupling element, whose opposite end face is provided with a reflective (i.e. mirror) surface.</p> |
