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研究生:周妡遙
研究生(外文):Chou, Hsin-Yao
論文名稱:使用半導體飽和吸收鏡的多波長被動Q開關摻鉺光纖雷射之研究
論文名稱(外文):Multi-wavelength passive Q-switched Er-doped fiber laser with a semiconductor saturable absorber
指導教授:賴暎杰
指導教授(外文):Lai, Yin-Chieh
口試委員:李柏璁蘇冠暐林家弘
口試委員(外文):Lee, Po-TsungSu, Kuan-WeiLin, Ja-Hon
口試日期:2017-08-30
學位類別:碩士
校院名稱:國立交通大學
系所名稱:光電工程研究所
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:2017
畢業學年度:106
語文別:英文
論文頁數:54
中文關鍵詞:被動Q開關飽和吸收體
外文關鍵詞:passive Q-switchedsaturable absorber
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在本論文中我們藉由穿透式的半導體飽和吸收體製作被動Q開關摻鉺光纖雷射來產生光脈衝序列。雷射共振腔由2.89公尺的單模光纖、0.7公尺的摻鉺光纖以及2公尺的非線性光纖所組成,藉由調整共振腔的兩個偏振控制器與980nm雷射二極體的幫浦功率,可以選擇讓雷射操作在單波長以及多波長的被動Q開關雷射狀態。我們特別針對多波長被動Q開關狀態下的雷射特性進行了實驗探討,特別是在實驗上觀測到不同波長的雷射光間會有部分能量交換所形成的脈衝振幅交替震盪之新現象。
In this thesis study, we build a passive Q-switched E-doped fiber laser with a semiconductor saturable absorber. The laser constitutes of 2.89 m SMF-28, 0.7 m Er-doped fiber, and 2 m high nonlinearity fiber. By adjusting the two polarization controllers inside the cavity as well as the 980 nm laser diode pump power, we can let laser operate under two different Q-switched states: single-wavelength state and multi-wavelength state. We have experimentally investigated the lasing characteristics of the multi-wavelength Q-switched state and find an interesting energy exchange oscillation phenomenon between the pulse amplitudes of different wavelengths.
誌謝 Ⅰ
摘要 Ⅱ
Abstract Ⅲ
Contents Ⅳ
List of Figures Ⅵ
List of tables Ⅸ
Chapter 1 : Introduction 1
1.1 Overview 1
1.2 Motivation 4
1.3 Organization of the thesis 5
Chapter 2 : Fundamentals of passive Q-switched Er-doped fiber lasers 6
2.1 Erbium doped fiber amplifiers 6
2.2 Semiconductor saturable absorber 10
2.3 Q-switched laser configurations 11
2.4 Basic model of passively Q-switched lasers 19
Chapter 3 : Experimental setup and results 24
3.1 Setup of the experiment 24
3.2 Results 27
3.2.1 Experiment results: single wavelength 27
3.2.2 Simulation results: single wavelength 31
3.2.3 Experiment results: multi-wavelength 36
3.2.4 Simulation results: multi-wavelength 45
Chapter 4 : Conclusions 48
4.1 Summary 48
4.2 Future work 49
References 50
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