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1·In this paper, a general method of quantitative analysis for the all-fiber Y-branch devices with slopes made of multimode optical fibers is presented.

本文对多模光纤的全光纤y分支器作了定量分析，并提出了对具有斜界面的Y分支器进行定量分析的方法。

2·This thesis based on high temperature measurement and optical fiber sensor technology, take a study of ordinary multimode fiber optical fiber and sapphire colorimetry pyrometry technique.

本论文以高温测量技术和光纤传感技术为基础，研究了普通多模光纤和蓝宝石光纤的比色测温技术。