臺灣博碩士論文加值系統

　　光纖元件在光纖通訊上佔了舉足輕重的地位，光纖元件的品質的優劣大大的影響了光纖通訊的品質。大部分的光纖元件對於幾何模型以及環境的條件非常的靈敏，些許尺寸或是溫度的改變，可能整個光學性質就完全不同，原本要求的設計是建設性干涉，卻可能因為某一參數做些許的改變而成了破壞性干涉。為了避免光學元件產生不預期的狀況，元件的光學性質模擬在元件的設計上是不可或缺的。

　　開始元件設計前，必須先了解其光學性質。本文架構在理論的基礎上，由理論之推導來了解元件功能與性質，再藉著軟體模擬的結果來印證其正確性。最後輸入不同的參數比較結果，以求得最佳化之設計。其中理論推導以及一些重要參數之求得，可以為從事相同模擬設計研究的參考依據。

　　Fiber optic devices play an important role in fiber optic communication. Most fiber optic devices are sensitive to the dimensions of themselves and the surrounding environment. A very small change of a device’s size or its outside temperature may alternate the device’s optical properties completely. For instance, if a device is originally designed for constructive interference, a minor change of a design parameter may result in destructive interference for the device. In order to avoid the unexpected conditions that may cause destructive effects on a device, the optical simulation is necessary for device designs.

　　Understanding the optical properties is essential for designing fiber optic devices. This paper begins with the derivation of optical theories that will help understanding the functions and properties of fiber optic devices, followed by the software simulations for verifications of those properties. A parametric study is presented for the purpose of design optimization. The derivation of the theories and the studies of parameters are invaluable for those who are involved in similar researches.

中文摘要.........................................................................................I
英文摘要........................................................................................Ⅱ
誌謝................................................................................................Ⅲ
目錄................................................................................................Ⅳ
表目錄............................................................................................Ⅷ
圖目錄............................................................................................Ⅸ
符號說明........................................................................................ⅩⅢ

第一章 緒論...................................................................................1
　　1-1 研究背景與目的..............................................................1
　　1-2 研究動機..........................................................................4
　　1-3 文獻回顧..........................................................................6
　　1-4 研究方法..........................................................................8
　　1-5 本文架構..........................................................................10

第二章 模擬軟體之基礎理論.......................................................12
　　2-1 電磁學之基礎理論..........................................................12
　　2-2 光束傳播方法（BPM）之推導......................................15

第三章 陣列波導光柵分波多工器...............................................17
　　3-1 DWDM系統之簡介..........................................................17
　　3-2 DWDM系統之分類..........................................................19
　　　　3-2-1 薄膜濾光片（TFF）............................................20
　　　　3-2-2 布拉格光纖光柵（FBG）....................................21
　　　　3-2-3 陣列波導光柵（AWG）......................................23
　　3-3 陣列波導光柵設計原理..................................................26
　　3-4 陣列波導光柵系統之設計..............................................36
　　　　3-4-1 5channels的AWG系統...........................................36
　　　　3-4-2 8channels的AWG系統...........................................39

第四章 多模干涉耦合器...............................................................42
　　4-1 多模干涉耦合器之簡介..................................................42
　　4-2 多模干涉耦合器之基本原理..........................................43
　　　　4-2-1 Singlemode與Multimode的介紹..............................43
　　　　4-2-2 原理推導...............................................................44
　　4-3 多模干涉耦合器之設計..................................................54
　　　　4-3-1 1×2多模干涉耦合器.............................................54
　　　　4-3-2 其它類型 1×2 多模干涉耦合器...........................57
　　　　4-3-3 1×3多模干涉耦合器.............................................60
　　　　4-3-4 3×3多模干涉耦合器.............................................62

第五章 馬赫-干德式調變器..........................................................66
　　5-1 調變器之簡介..................................................................66
　　　　5-1-1 吸收電子型調變器...............................................66
　　　　5-1-2 馬赫-干德式調變器..............................................68
　　5-2 馬赫-干德式調變器原理推導.........................................71
　　　　5-2-1 The Keer and Pockels Effects...................................71
　　　　5-2-2 馬赫-干德式調變器之原理推..............................72
　　5-3 馬赫-干德式調變器之設計.............................................78
　　　　5-3-1 破壞性干涉之調變...............................................78
　　　　5-3-2 建設性干涉之調變...............................................80
　　5-4 結果與討論......................................................................82

第六章 結論與建議.......................................................................83

參考文獻........................................................................................85

附錄A.............................................................................................92
附錄B.............................................................................................98
附錄C.............................................................................................100
附錄D.............................................................................................102
附錄E.............................................................................................105

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