以光纖為本體的周界安防系統多以干涉儀為主，其中又以桑克干涉儀所製成的系統為最常見，相較它種的光纖式干涉儀，光纖式桑克干涉儀對環境值較不敏感，不易產生誤判的情形，十分適合應用於周界安防之上，而本實驗係以光纖式的桑克干涉儀做為實驗架構的基底，透過改變桑克干涉儀原有的配置，藉以消除桑克干涉儀既有的響應與位置有關的特性，使得實驗架構能靈活的應用於入侵偵測上。
本實驗透過模擬實驗架構的輸出，藉以分析實驗架構的特性，並搭配實際的實驗，經由比對兩者之結果，藉以獲得實驗架構之特性。

第一章 序論 1
1.1 研究背景 1
1.2研究動機 1
1.3文獻回顧 3
1.4論文架構 9
第二章 元件原理及介紹 10
2.1光纖 10
2.2摻鉺光纖放大自發性輻射 11
2.3桑克干涉儀(sagnac interferometer) 13
2.3光學被動元件介紹 20
第三章 實驗架構與分析 22
3.1實驗架構分析 22
3.2 干涉儀之訊號衰變(signal fading) 25
3.3實驗模擬 30
第四章 實驗結果與討論 39
第五章 結論 51
參考文獻 53

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