近年來光電技術發展迅速，因而帶動半導體雷射激發固態雷射的發展。半導體雷射激發固態雷射可結合半導體雷射體積輕巧，高效能及低價格的特性，以及固態雷射高品質輸出模態的優點，此外尚具有轉換效率高、壽命長、結構簡單、體積小諸優點，因此其潛力不容忽視。

散熱問題乃高功率固態雷射之首要問題，本論文採用小尺寸之晶體光纖做為雷射增益介質，以縮小固態雷射之整體體積，並提高散熱效率。而生長晶體光纖的方法有許多種，其中，LHPG方法不但可輕易生長出直徑極小之單晶，且生長速度快、耗能低、控制容易，既經濟又迅速，且無坩堝污染之問題。利用此方法我們已生長出23~285 mm之高品質Nd:YAG晶體光纖，再選擇適當的材質進行包覆以降低傳輸損耗，並加以研磨、拋光、鍍膜即可用以製作Nd:YAG晶體光纖雷射。

本論文已成功研製出半導體雷射激發的Nd:YAG晶體光纖雷射，其雷射幫浦閥值為143 mW，輸出功率為38 mW。未來將朝改進晶體光纖的散熱方式、晶體光纖包覆的製作及晶體光纖表面之光學鍍膜，以提升轉換效率及輸出功率。

The rapid developments in optical and electronic technologies have accelerated developments of solid state laser technology. The diode-pumped solid state laser has the merits of the diode laser, such as compactness, low cost, and the merits of the solid state laser, such as high laser quality, high conversion efficiency, long lifetime, and simple structure. In addition, the diode-pumped solid state lasers have made it a feature star among lasers.
One of the problems in solid state laser is the heat removal. The crystal fiber is used as the laser gain medium in this work to be able to reduce largely the volume of solid-state laser, and improve the heat disappearance. There are many different methods to grow crystal fibers, LHPG method one of the best because single crystal fibers can be grown with small diameters at very fast rate, and accurate control. We have gown high quality Nd:YAG crystal fiber with diameter of 23~285 mm. After cladding, grinding, polishing, and coating, we could ready to fabricate the Nd:YAG crystal fiber laser.
We have successfully implemented diode-laser pumped Nd:YAG crystal fiber laser. The lasing threshold power is 143 mW, and the maximum output power is 38 mW. In the feature, we shall improve the cooling system, the cladding, and coating to further increase the conversation efficiency and output power.

中文摘要 i
英文摘要 ii
目錄 iii
圖目錄 iv
表目錄 vii
第一章 緒論 1
第二章 Nd:YAG晶體特性 5
2-1 基本特性 5
2-2 能階模型 10
2-3 構成波導傳輸之條件 16
2-4 腔內損耗與傳輸吸收係數之計算 18
第三章 晶體生長 20
3-1 生長方法 20
3-2 長晶裝置架構 24
3-3 特性量測與分析 29
第四章 Nd:YAG晶體光纖雷射製作與分析 38
4-1 前處理 38
4-2 研磨及拋光 40
4-3 光學量測 51
4-4 光學鍍膜 56
4-5 Nd:YAG晶體光纖雷射製作 57
第五章 結論 68
參考文獻 71
中英對照表 73

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