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随着社会经济、科学技术的发展,电话、电视、数据等多种综合业务的信息量越来越大。传统的同轴电缆、波导、微波等传输媒介已无法满足要求,必须采用损耗小、频带宽、容量大的光纤作传输媒介。光纤具有上述特点,且抗电磁干扰、尺寸小、重量轻。近年来在通信和广播等领域发展很快。 光纤传输原理 光是一种波动,也是电磁波。因此,光的传输原理基本上与电磁波传输情况相同。可见光的波长在
With the socio-economic development of science and technology, the amount of information for a variety of integrated services such as telephone, television and data is growing. Traditional coaxial cable, waveguide, microwave and other transmission media has been unable to meet the requirements, we must use low loss, wide bandwidth, large capacity fiber as the transmission medium. Fiber has the above characteristics, and anti-electromagnetic interference, small size and light weight. In recent years, communication and broadcasting and other fields developed rapidly. Optical fiber transmission principle is a kind of fluctuation, but also electromagnetic waves. Therefore, the transmission principle of light is basically the same as that of electromagnetic wave transmission. Visible light in the wavelength