There are four means for transmission, wireless, optical waveguide fibre, microwave relay and satellite transmission.
传输方式有地面无线、光纤、微波中继及卫星传输等。
Generally speaking, there are two types of optical fibers for Mid-infrared laser transmission. One is solid-core optical fiber and the other is hollow waveguide.
目前研究传输红外激光光纤一般分为两类：红外实芯光纤和红外空芯波导。
In this thesis, at first we will introduce the electromagnetic theory of optical planar waveguide, analyze the transmission characteristic of different modes and the connection loss of fiber.
在本文中，首先从电磁理论出发，利用波动光学理论分析平板波导的特性，对多模光纤连接损耗进行了理论分析。
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