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    • 10. 发明授权
    • Wavelength division-multiplexing optical transmission system
    • 波分复用光传输系统
    • US07295779B2
    • 2007-11-13
    • US10265392
    • 2002-10-07
    • Shigekazu HaradaAkio Tajima
    • Shigekazu HaradaAkio Tajima
    • H04J14/02H04J14/00
    • H04J14/02
    • A wavelength division-multiplexing system is provided that uses wavelength grids in conformity with the ITU-T Recommendation G.692 and that is realizable at lower costs. In the system, the wavelengths of signal light beams transmitted from plural optical transmitters are respectively spaced apart in such a manner that multiplexed wavelengths are set at regular intervals within the band range of the optical amplifier 5. The wavelength range of each laser beam covers at least two grids including neighboring grids. The wavelength demultiplexer 3 on the receiving side has the passband passing the wavelengths in a laser wavelength range corresponding to each channel.
    • 提供了使用符合ITU-T G.692建议书的波长网格并且可以以较低成本实现的波分复用系统。 在该系统中,从多个光发射机发射的信号光束的波长分别以这样的方式间隔开,即在光放大器5的频带范围内以规则的间隔设置复用波长。 每个激光束的波长范围覆盖至少两个包括相邻网格的网格。 接收侧的波长解复用器3具有通过对应于每个通道的激光波长范围内的波长的通带。