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    • 9. 发明申请
    • OPTICAL COMMUNICATION APPARATUS AND OPTICAL COMMUNICATION METHOD
    • 光通信装置和光通信方法
    • US20110222858A1
    • 2011-09-15
    • US13011400
    • 2011-01-21
    • Hidenori TAKAHASHIItsuro MORITA
    • Hidenori TAKAHASHIItsuro MORITA
    • H04J14/00H04J14/02
    • H04B10/548
    • A present invention provides an optical communication apparatus and method which can use a data modulator and an OFDM modulator more narrow band than a transmission band.The optical communication apparatus comprise an intensity modulation means for modulating intensity of continuous light with a sine wave, a means for separating optical signal outputted by said intensity modulation means into a bottom sideband and an upper sideband and outputting, a first modulation means for modulating said upper sideband with a first electrical signal, a second modulation means for modulating said bottom sideband with a second electrical signal, and a multiplex means for multiplexing an output signal from said first modulation means and an output signal from said second modulation means and outputting.
    • 本发明提供一种可以使用比传输频带更窄的数据调制器和OFDM调制器的光通信装置和方法。 光通信装置包括用于以正弦波调制连续光的强度的强度调制装置,用于将由所述强度调制装置输出的光信号分离为底边带和上边带的装置,并输出第一调制装置,用于调制所述 具有第一电信号的上边带,用于用第二电信号调制所述底边带的第二调制装置,以及用于对来自所述第一调制装置的输出信号和来自所述第二调制装置的输出信号进行多路复用的多路复用装置,并输出。