布拉格一階光纖光柵之特性量測

Property measurement of first order Fiber Bragg Gratings

林凱翔(Kai-Xiang Lin)

指導教授 ： 孫迺翔

義守大學/電機資訊學院/電機工程學系/碩士(2017年)

摘要

本篇論文主要研究重點是量測一階布拉格光纖光柵的傳輸、反射與輻射特性及循環器連接線彎曲損耗影響，本論文一開始先介紹實驗所需的元件及量測系統，接著對不同的光纖光柵進行量測，並使用三種量測系統(ASE-OSA、ISUTS、TLTS)進行量測並對量測結果進行比較。使用ISUTS 量測出編號160412-1 光柵找到共振區，共振區的範圍約在1542.06nm~1542.34nm，編號160412-2 光柵共振區範圍約在1542.24nm~1542.52nm，編號160419 光柵共振區範圍約在1542.14nm~1542.46nm，編號160705 光柵共振區範圍約在1565.78nm~1566.06nm，編號160712 光柵共振區範圍約在1565.74nm~1566.06nm，以上五條光纖光柵傳輸與反射具有一階布拉格特性，皆量測到極小的輻射值為背景光。發現如果循環器連接線未盡量拉直會影響到實驗結果。

關鍵字

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並列摘要

In this thesis, we measure the transmission, the reflection and the radiation spectrum of first-order fiber Bragg gratings (FBGs). Moreover, we measure the effect of bending loss of fibers. First, we introduce three measurement systems, which are ASE-OSA system, ISU Testing System (ISUTS), and Tunable Laser Testing System (TLTS). We compare the results with the three systems. The FBGs labeled as 160412-1, 160412-2, and 160419 are measured, where their resonant regions are 1542.06nm ~ 1542.34nm, 1542.24nm ~ 1542.52nm, and 1542.14nm ~ 1542.46nm, respectively. The resonant wavelengths of FBGS (labeled as 160750) are between 1565.78nm and 1566.06nm, while the resonant region of FBGs (labeled as 160750) is between 1565.74nm and 1566.06nm. These five FBGs operate at the first Bragg condition. Moreover, since no radiation occurs in the first Bragg, the radiated power of FBGs measured in this study is background light. Finally, the bending losses of fibers reduce the transmission efficiency and increase the insertion loss.

並列關鍵字

none

參考文獻

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