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研究生:宋坤泰
研究生(外文):Kun-Tai Song
論文名稱:c切面摻釹釩酸鎦短脈衝雷射產生之研究
論文名稱(外文):Investigation of short pulse generation in c-cut Nd:LuVO4 laser
指導教授:林家弘林家弘引用關係
口試委員:洪魏寬吳小華謝文峰
口試日期:2009-07-06
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:光電工程系研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:英文
論文頁數:40
中文關鍵詞:Q開關鎖模摻釹釩酸鎦c切面摻鉻釔鋁石榴石半導體飽和吸收鏡
外文關鍵詞:Q-switchedmode lockedc-cut Nd:LuVO4Cr4+:YAGSESAM
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  • 被引用被引用:1
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在此篇論文中,我們利用c切面摻釹釩酸鎦晶體為增益介質,分別使用半導體飽和吸收鏡和摻鉻釔鋁石榴石之飽和吸收體來產生短脈衝且高能量的脈衝輸出。與之前發表過利用a切面摻釹釩酸鎦晶體為增益介質且使用半導體飽和吸收鏡來產生被動鎖模的雷射比較,我們在c切面摻釹釩酸鎦鎖模雷射,產生頻寬約0.48奈米的頻寬且脈衝寬度約3.7皮秒的短脈衝。而另一個成果,我們將起始穿透率為80%摻鉻釔鋁石榴石的飽和吸收體置入c切面摻釹釩酸鎦雷射中, 產生Q開關並且鎖模的短脈衝。18瓦的輸入功率下,利用反射率為70%的輸出耦合鏡,我們產生較高的脈衝能量,大約為112微焦耳的能量。
In thesis, we employ the c-cut Nd:LuVO4 crystal for the gain medium, the distinction use semiconductor saturable absorber and Cr4+:YAG absorber to generate the short pulse, and high energy pulse output. In comparing with previously reported in passively mode locked a-cut Nd:LuVO4 laser by SESAM, stable mode-locking has been generated in c-cut Nd:LuVO4 with a duration as short as 3.7 ps due to the wide bandwidth of 0.48 nm. The other work, we used the Cr4+:YAG with 80% initial transmittance to demonstrate the Q-switched and mode locked (QML) pulse generation in c-cut Nd:LuVO4 laser. Using 70% reflectane output coupler, we have demonstrated higher pulse energy about 112 μJ at 18 W pumping.
Contents

Abstract (in Chinese).........I
Abstract (in English).........II
Acknowledgement (in Chinese).........III
Index.........IV
List of Tables.........V
List of Figures.........VI
Chapter 1 Introduction.........1
1.1 Introduction
1.1.1 The mode locking and QML in diode pump solid state laser (DPSSL).........1
1.2 Merit of Nd:LuVO4 laser crystal.........2
1.3 Motivation.........5
References.........7
Chapter 2 Basic principles and mechanisms of passive mode-locking.........10
2.1 Basic principles of mode-locking.........10
2.2 Passive mode-locked with SESAM...........13
2.3 Cavity configuration.....................17
2.4 Generalized model for passively Q-switched lasers with simultaneous mode-locking....................18
References............23
Chapter 3 Diode-pumped passive mode locking c-cut Nd:LuVO4 laser by semiconductor saturable absorber mirror.........25
3.1 Experimental setup .........25
3.2 Experimental results and discussion.........26
References.........31
Chapter 4 Diode pumped passive mode locking Nd:LuVO4 laser by semiconductor absorber crystal: Cr4+:YAG.........32
4.1 Experimental setup ...............32
4.2 Experimental results and discussion.........33
References.........39
Chapter 5 Conclusions and future works.........40
5.1 Conclusions.........40
5.2 Future works.........40
Chapter 1
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Chapter 2
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Chapter 3
[1] J.H. Lin, K.H. Lin, C.C. Hsu, W.H. Yang, W.F. Hsieh, "Supercontinuum generation in a microstructured optical fiber by picosecond self Q-switched mode-locked Nd:GdVO4 laser," Laser Phys. Lett. 4, 413 (2007).
[2] U. Keller, D.A.B. Miller, G.D. Boyd, T.H. Chiu, J.F. Ferguson, M.T. Asom, "Solid-state low-loss intracavity saturable absorber for Nd:YLF lasers: an antiresonant semiconductor Faby-Perot saturable absorber," Opt. Lett. 17, 505 (1992).
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Chapter 4
[1] J.H. Lin, H.R. Chen, H.H. Hsu, M.D. Wei, K.H. Lin, and W.F. Hsieh, "Stable Q-switched mode-locked Nd3+:LuVO4 laser by Cr4+:YAG crystal," Opt. Express.Vol. 16, pp.16538-16545, October (2008).
[2] Y.F. Chen, Y.P. Lan, and H.L. Chang, "Analytical model for design criteria of passively Q-switched lasers, " IEEE Journal of Quantum Electronics 37 (3), pp. 462-468 (2001).
[3] 楊文勛,指導教授謝文峰, "低臨界值半導體雷射機發摻釹釩酸被動鎖模雷射在半導體飽和吸收鏡及非線性境之相關研究," 國立交通大學光電工程研究所碩士論文
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