Because gas lasers were often used as the light source, their beam had to be coupled into the thin-film waveguides.
由于气体激光器常用作光源，故必须将其光束耦合到薄膜波导中去。
2
The paper presents a method to improve the uniformity of the output energy from the wave guide array by introducing some assistant waveguides.
给出了在输出端引入辅助波导的方法，以提高输出波导阵列的均匀性。
3
Two kinds of methods for solving localization factor are given. As examples, localization factors of ordered and disordered periodic waveguides are respectively calculated and discussed.