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論文名稱 Title |
高效率摻鐿釔鋁石榴石環形雷射之研製 The Study and Fabrication of High Efficiency Yb:YAG Ring Laser |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
79 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2005-06-29 |
繳交日期 Date of Submission |
2005-07-21 |
關鍵字 Keywords |
再入射雙鏡式環形共振腔、摻鐿釔鋁石榴石、光學薄膜、ZEMAX、電子槍蒸鍍系統 Yb:YAG, reentrant two-mirror ring laser cavity, electron gun deposition system, ZEMAX, optical coating |
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統計 Statistics |
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中文摘要 |
近三十年來,Nd:YAG在高功率固態雷射的使用上一直有著無法取代的地位。相較於Nd:YAG雷射,Yb:YAG雷射具有較小的量子缺陷,產生的熱較少,能夠減少因熱造成的光學形變,另外,其摻雜離子之濃度可達100%,且在941 nm處之吸收半高寬頻寬可達18 nm,基於以上的優勢,Yb:YAG具有取代Nd:YAG的潛力。 本實驗室以自我研發之「再入射雙鏡式環形共振腔雷射系統」配合以Yb:YAG晶體做為雷射增益介質並以「電子槍蒸鍍系統」鍍製雷射系統的光學元件,已成功地產生Yb:YAG環形雷射。 |
Abstract |
In the past three decades, Nd:YAG has been the dominating high power solid-state laser gain medium. Compared with Nd:YAG, Yb:YAG has lower quantum defects which produces less heat so that it can reduce thermo-optical deformation. In addition, the achieved doping concentration can be 100%, and the absorption FWHM at 941 nm is 18 nm. Based on above listed advantages, Yb:YAG has the potential to replace Nd:YAG. Using Yb:YAG as the laser gain medium in reentrant two-mirror laser cavity, we have succeeded in Yb:YAG ring laser and all the intracavity elements are coated by our electron gun deposition system. The main purpose of my research is to continue the previous result (slope efficiency: 20.1%), and further increasing the slope efficiency of our ring cavity with different round-trip transmittance of couplers. Besides, we measured and analyzed the polarization of the planar and non-planar ring cavities. At present, the highest slope efficiency we achieved is 38.9% with a round-trip transmittance of 16.4%. |
目次 Table of Contents |
中文摘要 英文摘要 誌謝 目錄 圖目錄 表目錄 第一章 緒論 1.1 歷史回顧 1.2 再入射雙鏡式環形共振腔 1.3 增益介質Yb:YAG 1.4 再入射雙鏡式環形共振腔與Yb:YAG的結合 第二章 雷射架構設計與光學模擬 2.1 再入射條件解析解 2.2 模態匹配 第三章 光學元件製備 3.1 Yb:YAG晶體之研磨與拋光 3.2 光學薄膜之製鍍 3.2.1 薄膜設計 3.2.2 電子槍蒸鍍系統 |
參考文獻 References |
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