本篇論文的目的在於設計一套製造橢圓透鏡光纖的新方法，目前業界在製造透鏡光纖都是將以成型的光纖頭端至入光纖接機。在將光纖置入光纖熔接機之前有許多的步驟需要先行確定，而這些步驟會造成時間上大大的浪費和增加成品失敗的機率。因此本篇論文提供一項用研磨方式就可製造出橢圓形透鏡光纖，在此研究中，使用了CCD去監測光纖頭端形狀，之後再使用監測程式來判斷光纖頭端的曲率半徑。因此本研究將會是朝向自動化光纖研磨系統的重要技術之一。

The goal of this study is to design a new method which can be used for manufacturing the elliptic lensed fiber. The lensed fiber is obtained by heating the fiber tip in a fusing splicer at present. Before taking the fiber into fusing splicer, there are many procedures have to be checked. Those procedures will take a lot of time and increase the rate of inaccuracy. So, this research proposes a new method to form the elliptic lensed fiber by polishing. In this study, we simply use couple charge device (CCD) to detect the shape of the fiber tip. Than, we use the detected program to get the curvature of fiber tip. The system had been successfully achieved the purpose of curvature-controlled. The research will be the key technique toward the automatic bare fiber polishing system.

謝 誌 2
Contents 3
List of Figures 4
List of Tables 6
摘要 7
Abstract 8
Chapter 1. Introduction 9
1-1 Introduction of Optical Communication System 9
1-2 The Introduction of Fiber Manufacturing 11
1-3 Motivation and Purpose 13
Chapter 2. Reference Review 15
2-1 Introduction of the Manufacturing Methods of the Curved surface 15
2-2 The Roughness of the Surface 19
Chapter 3. Research Methods 21
3-1 The Theory of Removal Volume and Pressure Distributions 21
3-1-1 The Removal Volume of Fiber 21
3-1-2 The Theory of Pressure Distributions 21
3-2 The Polishing Method of Elliptic Fiber Tip 22
3-2-1 The Introduction of Polishing Method 22
3-2-2 The Applications and Computes 25
3-2-3 The Curvature Analysis and the Simulation 29
Chapter 4. Experiments and Results 35
4-1 The Structure of Polishing System 35
4-2 The Experiment Results 37
4-3 Discussions 48
Chapter 5. Conclusion and Further Direction 49
5-1 Conclusion 49
5-2 Further Direction 49
Reference 51

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