lightwave transmission meaning in Chinese

光波传输

Lightwave transmission system and multiplexer equipment sdh - base
同步数位阶层光波传输系统及多工机设备
Lightwave transmission system and multiplexer equipment sdh - based
同步数位阶层光波传输系统及多工机设备
Generally , the designed channel spacing of itu - t standard in wdm systems is from 0 . 8nm to 1 . 6nm , which is much larger than the spacing required by actual communication bandwidth . for example in lightwave transmission systems , a sghz channel occupies only 0 . 04nm at the wavelength band of 1 . 55 n m . thus , most of the bandwidth in the actual transmission systems may be wasted
Itu - t标准中wdm系统设计的信道间距为0 . 8nm - 1 . 6nm ，这远远大于实际使用的信道带宽，例如一个带宽为5ghz的信道在1 . 55 m波段只占据了约0 . 04nm的波长范围，因而导致大部分的带宽被浪费。