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博碩士論文 etd-0721105-174122 詳細資訊
Title page for etd-0721105-174122
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
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
79
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
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
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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[17]ZEMAX manual, Jan. 6th, 2003
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