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与电缆电视(CATV)一样,在调幅多频道光纤系统中,噪声与非线性失真也是决定系统动态工作范围的一对主要矛盾。下面对光纤设备所产生的噪声及光纤链路中的载噪比进行分析和介绍。 光纤链路主要由3个部分组成:光发送机、光纤和光接收机。 光发送机 1、光发送机定义和工作原理 国际电工委员会(IEC)定义光发送机为:将电信号转换为光信号
As with cable television (CATV), noise and nonlinear distortion are also a major contradiction in the dynamic range of the system in AM multi-channel fiber systems. The following analysis of the noise generated by optical fiber equipment and fiber-optic link in the carrier-to-noise ratio analysis and introduction. Optical fiber link mainly consists of three parts: optical transmitter, optical fiber and optical receiver. Optical transmitter 1, optical transmitter Definition and working principle The International Electrotechnical Commission (IEC) defines the optical transmitter is: the electrical signal is converted to optical signals