臺灣博碩士論文加值系統

本篇論文使用兩種不同的拉曼晶體輸出670nm到750nm波段的紅光，第一部分使用YVO4做為拉曼晶體，調控LBO溫度使其達到相位匹配，以輸出670nm與714nm的光，並透過調整LBO溫度實現在相同腔體條件下產生輸出波長轉換。第二部分將拉曼晶體替換為KGW晶體，並將腔體由凹平腔改為雙凹腔，並將LBO控制在最佳化溫度，使其轉換效率最佳。

This paper utilizes two different Raman crystals to generate red light in the wavelength range of 670nm to 750nm. In the first part, YVO4 is used as the Raman crystal, and the temperature of LBO is adjusted to achieve phase matching and generate light at 670nm and 714nm. The wavelength conversion at the same cavity conditions is realized by tuning the temperature of LBO. In the second part, the Raman crystal is replaced with KGW crystal, and the cavity is changed from a plano-concave to a double-concave configuration. The LBO temperature is controlled at an optimized level to maximize the conversion efficiency.

摘要 i
Abstract ii
目錄 iii
圖目錄 v
表目錄 vi
第一章 緒論 1
1.1 研究動機 1
1.2 論文架構 2
第二章 實驗原理 3
2.1 雷射三要素與雷射原理 3
2.2 二極體激發固態雷射 5
2.3 Nd:GdVO4晶體介紹 6
2.4 拉曼效應(Raman effect) 8
2.5 非線性光學與非線性晶體 14
2.6 相位匹配 18
第三章 YVO4晶體對輸出功率的影響 20
3.1 YVO4晶體偏振對714nm輸出功率的影響 20
3.1.1 實驗架構 20
3.1.2 實驗結果 22
3.2 倍頻670nm與和頻714nm 25
3.2.1 實驗架構 25
3.2.2 實驗結果 27
3.3 LBO溫度對於波長的影響 30
第四章 KGW晶體對輸出功率的影響 33
4.1 KGW晶體偏振對輸出波長的影響 33
4.1.1 實驗架構 33
4.1.2 實驗結果 36
4.2 和頻707nm與714nm 40
4.2.1 實驗架構 40
4.2.2 實驗結果 42
第五章 結論 45
參考文獻 47

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