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研究生： 林瑋晨
Wei-Chen Lin
論文名稱： 極化光學同調斷層攝影術之類比偵測電路設計
Design of analog detection circuit for Polarization Sensitive Optical Coherence Tomography
指導教授： 郭文娟
Kuo, Wen-Chuan
學位類別： 碩士
Master
系所名稱： 光電工程研究所
Graduate Institute of Electro-Optical Engineering
論文出版年： 2008
畢業學年度： 96
語文別： 英文
論文頁數： 38
中文關鍵詞： 解調對數放大器 、波包偵測 、雙折射參數
論文種類： 學術論文
相關次數： 點閱：173  下載：0 
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    • 在這份研究論文中，我們加入兩個解調對數放大器，ㄧ個乘法IC電路，ㄧ個加法電路，和一個相減放大器在傳統的PS-OCT系統中.我們便可以簡單的藉由差動波包偵測方式獲得雙折射參數。因為在兩正交極化狀態中的共路徑背景雜訊可被消除掉，這樣一來便減少了在雙折射量測上的系統誤差。除此之外，由於在干涉訊號中的相位差訊號是藉由類比電路記錄到。因此能大大減少擷取資料所需的時間，論文最後並呈現一種具有微弱雙折射特性的介質，即人類血管的測量結果。

    Table of Contents Chinese Abstract vi English Abstract vii Chapter 1 Introduction 1 1.1 Brief review of polarization sensitive optical coherence tomography (PS-OCT) 1 1.2 Motivation and Objective 2 1.3 Organization of the thesis 4 Chapter 2 Material and Method 5 2.1 Phase retardation measurement 5 2.2 Fast-axis measurement 8 2.3 Logarithmic amplifier 9 2.4 Multiplier 16 2.5 Summing amplifier 18 2.6 Berek polarization compensator (BPC) 19 Chapter 3. Results and Discussions 21 3.1 circuit fabrication 21 3.2 Axial resolution test 23 3.3 PR measurement of a BPC 25 3.4 FA measurement of a BPC 30 3.5 In vitro human vessel experiment 33 Chapter 4 Conclusion 36 Reference 37

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