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51问答网 > 光纤通信是利用______（选填“电磁波”或“超声波”）在光导纤维中______（选填“反射”或“折射”、“直

光纤通信是利用（选填“电磁波”或“超声波”）在光导纤维中（选填“反射”或“折射”、“直

2025-03-15 07:35:20

推荐回答（1个）

回答1：

光也是一种电磁波，光纤通信是利用激光在光导纤维内壁不断反射来传递信息的，光纤的抗干扰能力强，不受外界电磁波的干扰与影响，而且本身也不向外界辐射信号，因此它适用于长距离的信息传输以及要求高度安全的场合，在传输过程中，一般不会受到外界的影响，只有将光缆弄断，信号的传输才有可能中断．
故答案为：电磁波；反射．

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