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英国最近使用一种单模激光器,配以单模光纤实现数据传输的无中继距离达100多公里.传输速度超过140兆毕/秒,相当于2000路电话电路.其传输距离为目前最长传输距离的两倍,为第一代光纤传输系统的12倍多.使两只激光器工作,通过第一只连续波激光器的注入来锁定作为输出的第二只激光器,使其以单模传输为主,从而使光谱线宽度缩短到10~(-3)毫微
The UK recently used a single-mode laser with a single-mode fiber for data transmission over a distance of more than 100 kilometers and a transmission speed of more than 140 MBytes / second, equivalent to a 2000-circuit telephone line, with the longest transmission distance Twice the transmission distance, more than 12 times as much as the first generation fiber optic transmission system, the two lasers are operated to lock the second laser as the output by the injection of the first CW laser to transmit in single mode as Lord, so that the spectral line width is shortened to 10 ~ (-3) nano