| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce natural Raman scattering crosstalks from classic light with normal strength, and to realize multiplex transmission with weak light such as a quantum signal. <P>SOLUTION: An optical multiplex communication system multiplexes a plurality of communication channels, which include a quantum channel transmitter 110 in a state that a light power is relatively small and a classic channel transmitter 120 in a state that a light power is large, and transmits the information to an optical fiber transmission path 150 which is an optical transmission medium. In the optical multiplex communication system, a modulating means 130, which operates so that a transmission delay time difference between a channel related to the quantum channel transmitter 110 and a channel related to the classic channel transmitter 120 becomes lower than half of a repeat period of a signal of the channel related to the classic channel transmitter 120, is provided to any of the plurality of communication channels. <P>COPYRIGHT: (C)2009,JPO&INPIT |
