本論文的目的在研究以單一光學元件之高效率的光纖耦合機制，我們設計的光學元件為一鼓形透鏡(Drum Lens)，在不考慮Fresnel反射及吸收下模擬之最高耦合效率可達71%。
在本研究中，可分為三個主要研究內容，分別為：(1)光學系統之初階設計：包括雷射腰寬之計算及鼓形透鏡之初階設計。(2)進階模擬與電腦輔助設計：包括像差研究與消像差之光學設計及應用Zemax光學設計軟體與ASAP光學模擬軟體來設計與模擬光學系統之光學特性並計算耦其合效率。(3)光學元件置放容忍度分析：包括分析各元件(雷射、透鏡與光纖)置放的位移及傾斜容忍度。

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