The effective refractive index is 2.0452, which was measured by prism coupler method.
用棱镜耦合法测得了该薄膜的有效折射率为2。 0452。
Four effective methods on measuring refractive index of wave guide film are given. All of the methods are studied, especially, an experiment is done by the prism coupling method.
本文讨论了四种测量波导薄膜的有效方法，对各种测量方法作了分析研究，并着重对棱镜耦合法进行了实验研究。
It is testified that the method is effective and the measuring accuracy is improved by the experiments of measuring and compensating for refractive index of air.
通过空气折射率测量及补偿实验，证实了该方法的可行性，测量结果经补偿后可使精度提高一个数量级。
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