| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical CDM transmission system and an optical CDM transmission method, which require no adjustment of intervals between voltage levels corresponding to symbol values of multiple-value electric signals generated even if a multiplexing number N of a binary data signal changes, and which can extend N to more than 3 and flexibly. <P>SOLUTION: In an optical CDM transmission system and an optical CDM transmission method, a binary dummy signal is added to a binary data signal inputted to a binary/multiple-value conversion means, and multiple values are made fixed regardless of a multiplexing number of the binary data signal, whereby multiple-value ASK signal light is generated whose light strength levels corresponding to symbol values become an equal interval without adjusting voltage levels corresponding to the symbol values of multiple-value electric signals generated by the binary/multiple-value conversion means even when the multiplexing number increases/decreases. <P>COPYRIGHT: (C)2011,JPO&INPIT |
