本篇論文的研究主題是太陽能激發摻釹雙纖衣光纖(Neodymium Double-Clad Fiber)雷射，其研究特色是利用天然、低汙染的綠色能源對特殊雷射增益介質進行激發。利用掺釹光纖以波導(Waveguide)的形式取代過去掺銣玻璃、掺釹釔鋁石榴石晶體等體截面積大的增益介質結構，激發光源我們利用自然界太陽光光源取代二極體雷射、脈衝氙燈、連續氪弧燈…等需以電源驅動的方式，達到節約能源並減低汙染的效果。

利用太陽能集光器系統(Solar Concentrator System)，對平均太陽光能量密度(800W/m2)進行高效率集光，接著以端面激發(End-Pump)方式對掺釹雙纖衣光纖進行激發雷射的研究；以此方式，在應用層面，在偏遠且陽光充足卻缺乏其它種能源的地區，此類太陽能集光器的應用可視為一種好的選擇。

The topic of this thesis is solar pump Nd-doped double-clad fiber laser, the main characteristic of this research is we use nature and low pollution source pump unique laser gain medium. By using Neodymium-doped double-clad fiber in form of waveguide structure to replace Neodymium-doped glass, Neodymium-doped yttrium aluminum garnet crystals that have large cross-section area of the volume in the past； natural sunlight is used as pumped source in instead of diode laser, pulsed Xenon lamp, Krypton arc lamp…etc. In order to reduce the use of electric power source and decrease the pollution .

By using Solar concentration system, we focus average sunlight power density (800W/m2) to very high power density. In application, If lasers are needed in remote locations where sunlight is abundant and other forms of energy sources are scarce, this kind of solar energy usage is not a bad idea.

論文審定書(中文) i
論文審定書(英文) ii
中文摘要 iii
Abstract iv
致謝 v
目錄 vi
圖目錄 viii
表目錄 x
第一章 緒論 1
第二章 Nd雷射簡介 3
2.1 Nd：Glass之基本特性﹝12﹞ 3
2.2能階模型[13] 6
2.3摻釹光纖傳輸模態簡介[16] 9
2.4太陽能對雷射激發計算[20][21] 13
2.5共振腔結構對雷射閥值計算 16
第三章 太陽能集光器 19
3.1 太陽能集光器介紹 19
3.2 集光率 24
3.3雷射集光系統 27
第四章 太陽能激發雷射系統之建構與量測 31
4.1整體實驗流程 31
4.2光學元件繪製與光路模擬 32
4.2.1模擬軟體介紹[39] 32
4.2.2 模擬比較 34
4.3太陽能雷射系統之建構 40
4.3.1太陽能雷射系統介紹 40
4.3.2 太陽能集光系統集光率 43
4.4光譜量測 47
第五章 結果與討論 49
參考文獻 50

圖目錄
圗2-1 Nd：Glass能階圖 6
圖2-2 四能階系統示意圖 7
圖2-3 三能階系統示意圖 7
圗2-4 摻銣玻璃吸收光譜 8
圖2-5 單模光纖(Single-Mode Optical Fiber) 9
圖2-6 步階折射率光纖(Step-Index Optical Fiber) 9
圖2-7 漸變式折射率光纖(Graded-Index Optical Fiber) 9
圖2-8 子午光線在光纖內傳輸示意圖之一 10
圖2-9 斜線光線在光纖中傳輸示意圖 10
圗2-10 子午光線在光纖內傳輸示意圖之二 10
圗2-11 與 之關係 13
圗2-12 釹離子吸收頻帶與AM1.0太陽光光譜圖重疊示意圖 15
圖2-13 雷射共振腔基本架構示意圖 16
圖3-1 平板式聚光器 20
圖3-2 真空管聚光器 20
圖3-3 線性菲涅爾集光器 21
圖3-4 拋物面溝槽式集光器 21
圖3-5 複合式拋物面集光器 22
圖3-6 定日鏡集光器 22
圖3-7 拋物式碟盤集光器 23
圖3-8 菲涅爾特鏡示意圖 23
圖3-9 集光示意圖 24
圖3-10 太陽光光譜 25
圖3-11 黑體輻射之幾何圖示 27
圖3-12 凱薩格林望遠鏡 27
圗3-13 介電質全內反射器 28
圗3-14 拋物反射鏡搭配介電質全內反射集光器 29
圖3-15 菲涅爾雷射集光系統 30
圖4-1 整體實驗流程圖 31
圖4-2 TracePro模擬介面-1 32
圖4-3 TracePro模擬介面-2 33
圖4-4 Solidworks模擬介面 33
圖4-5 拋物型反射碟盤之光線追跡圖 36
圖4-6 拋物型反射碟盤之光線幅照度圖 36
圖4-7 菲涅爾透鏡之光線追跡圖 37
圖4-8 菲涅爾透鏡之光線幅照度圖 37
圖4-9拋物型反射碟盤之二次聚焦光線追跡圖 38
圖4-10拋物型反射碟盤之二次聚焦光線幅照度圖 38
圖4-11菲涅爾透鏡之二次聚焦光線追跡圖 39
圖4-12菲涅爾透鏡之二次聚焦光線幅照度圖 39
圖4-13 太陽能雷射系統示意圖 40
圖4-14 太陽能集光系統實體圖 41
圖4-15 增益介質部分之實體圖 41
圖4-16 複合式拋物面集光器 42
圖4-17 實際量測圖 44
圖4-18 室外量測實照 47



表目錄
表2-1 摻釹玻璃之光學與物理性質 4
表2-2 Nd：Glass主要輻射頻帶和比例 7
表2-3 太陽能各效率參數表 16
表3-1 拋物反射鏡搭配不同材料介電質全內反射式集光器集光率比較表 29
表4-1 拋物型反射碟盤之規格參數 34
表4-2菲涅爾透鏡之規格參數 35
表4-3 複合式拋物面集光器之規格參數 42
表4-4 對太陽光量測表 44
表4-5 對菲涅爾透鏡量測表 45
表4-6 對複合式拋物面集光器量測表 45
表4-7本實驗集光率與文獻之比較 46
表4-8 Nd3+ DCF激發光譜圖型 48

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