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    • 10. 发明申请
    • OPTICAL COMMUNICATION SYSTEM
    • 光通信系统
    • US20130129356A1
    • 2013-05-23
    • US13814513
    • 2010-09-03
    • Toshiyuki TokuraKazuyuki IshidaTakashi Mizuochi
    • Toshiyuki TokuraKazuyuki IshidaTakashi Mizuochi
    • H04J14/02H04B10/29
    • H04J14/02H04B10/0777H04B10/29H04B10/2916H04B2210/074H04J14/0276
    • An optical communication system includes an optical-signal transmission unit transmitting an existing optical signal and a low-rate-signal superimposition unit superimposing a low-rate signal on the existing optical signal by intensity modulation. It further includes: a low-rate-signal extraction unit that extracts the low-rate signal from the existing optical signal on which the low-rate signal is superimposed and converts the extracted low-rate signal into a low-rate electric signal; an add-on optical-signal transmission unit that transmits an add-on optical signal; a low-rate-signal superimposition unit that superimposes a low-rate signal on the add-on optical signal by the intensity modulation based on the low-rate electric signal; and a repeater that repeats the add-on optical signal on which the low-rate signal is superimposed, to a transmission destination.
    • 光通信系统包括光信号传输单元,其通过强度调制将现有光信号和低速信号叠加单元传输到现有光信号上。 其还包括:低速率信号提取单元,从叠加了低速率信号的现有光信号中提取低速信号,并将提取的低速信号转换为低速电信号; 发送附加光信号的附加光信号传输单元; 低速率信号叠加单元,其通过基于低速率电信号的强度调制将低速率信号叠加在附加光信号上; 以及将重叠了低速率信号的附加光信号重复到发送目的地的中继器。