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姓名 劉秉忠(Bing-Zhong Liu)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 以單塊二維週期、非週期性晶格極化反轉鎂摻雜鈮酸鋰同時作為Nd:YVO4雷射之電光布拉格Q調制器和腔內多波長光參量振盪器
(Monolithic 2D periodically、aperiodically poled MgO:CLN as simultaneously an Electro-Optic Bragg Q-switch and a Multi-wavelength Optical Parametric Oscillator (OPO) in Nd:YVO4 laser)
相關論文
★ Continuous-wave narrow-line yellow laser generation in a diode-pumped Nd:YVO4 laser using volume Bragg gratings★ 半導體雷射泵浦內建式Q-調制Nd:MgO:PPLN雷射之研究
★ 主動式多通道窄頻寬通Ti:PPLN波導濾波及模態轉換器之研究★ 以鎂掺雜鈮酸鋰製作二倍頻藍光雷射波導元件之製程研究
★ 非週期性晶格極化反轉鈮酸鋰作為主動式窄頻寬通多波長濾波器及倍頻多波長濾波器★ 非週期性晶格極化反轉鈮酸鋰作為有效率的二倍頻和模態轉換器之研究
★ 積體式週期與非週期極性反轉鈮酸鋰光電與雷射元件★ 退火式質子交換波導PPLN電光調制TM模態轉輻射偏振態之研究
★ 高效率雙Nd:YVO4 雷射和頻黃光產生系統★ 以串級式電光週期性晶格極化反轉鈮酸鋰達成三波長主動式Q-調制Nd:YVO4雷射
★ 以單塊二維週期性晶格極化反轉鈮酸鋰同時作為Nd:YVO4雷射之電光Q調制器和腔內光參量振盪器★ 綠光準相位匹配二倍頻質子交換鎂摻雜鈮酸鋰波導的製程研究
★ 以單晶片串級式週期性準相位匹配波長轉換器與非週期性準相位匹配電光偏振模態轉換器達成主動式調制窄頻輸出光參量振盪器之研究★ 單片非週期性晶疇極化反轉鈮酸鋰同時作為Nd:YVO4雷射Q-調制和腔內光參量產生之研究
★ 準相位匹配二倍頻軟質子交換鎂摻雜鈮酸鋰波導研究★ 以雙體積全像布拉格光柵及二維週期性晶疇極化反轉鈮酸鋰於Nd:YVO4雷射內達成脈衝式窄頻光參量振盪器之研究
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摘要(中) 具有可調變波長和高同調性的光參量振盪器在遙測、光譜學、非線性光學、測距儀、光通訊、生醫等,都有很廣泛的應用。
本篇論文致力於把兩種功能的元件整合在同一塊晶體上。此兩種元件分別為一電光布拉格繞射元件及光參量產生器與光參量振盪器。利用一二維週期性、非週期性晶格極化反轉鎂摻雜鈮酸鋰晶體來同時滿足驅動此二元件所需之相位匹配,並將它放置在一Nd:YVO4 雷射共振腔內同時作為雷射Q調制器及腔內多波長光參量產生器與光參量振盪器。
此晶體的y 軸方向符合1064nm 布拉格條件的週期性結構,其週期為20um,布拉格角度為0.7度。晶體的x 軸方向則利用模擬退火法設計符合多波長相位匹配條件,作為多波長光參量產生器。
當施加電壓為350V,脈衝頻率為1KHz 的電訊號,於此二維晶體的z方向時,在環境溫度為40 度,吸收功率為7.5W,可量測到1550nm波段的腔內光參量振盪器尖峰功率大於430W。
摘要(英) Optical parametric oscillators (OPOs) can produce wavelength tunable coherent light sources and have been widely used in
various applications including the remote sensing, spectroscopy, nonlinear optics, range finder, optical
communications, and bio-medicine.
In this thesis, we have devoted to integrate two device
functions in a monolithic MgO:LiNbO3 crystal. These two
devices are an EO Bragg deflector and an optical parametric
generator (OPG)& optical parametric oscillator (OPG). A 2D
periodically、aperiodically poled MgO dopant lithium niobate
crystal has been designed and fabricated in this work to
simultaneously satisfy the phase-matching conditions required for functioning the two devices. We further inserted this 2Dcrystal in a Nd:YVO4 laser system to simultaneously function as a laser Q switch and an intracavity optical parametric generator (OPG)& optical parametric oscillator (OPO).
The monolithic MgO:CLN has a periodic domain structure along
the crystallographic y axis of period 20 um to phase-match the 1064-nm Bragg diffraction process at Bragg angle ~0.7o. The crystal and has an aperiodiclly domain structure along the crystallographic x axis, designed by the SA method for multi-wavelength optical parametric generation.
When driving the 2D domain structured MgO:CLN with 350-V pulses at 1 KHz, we obtained 1550-nm signal from the IOPO system with a peak power of > 420W, at 7.5-W diode pump power at 40oC.
關鍵字(中) ★ 光參量振盪器
★ 鎂摻雜鈮酸鋰
★ 非週期性晶格極化反轉
★ 電光效應
★ 布拉格結構.共振腔品質因素
關鍵字(英) ★ Bragg
★ Electro-Optic
★ aperiodically poled MgO:CLN
★ Q-switch
★ Optical Parametric Oscillator
論文目次 第一章 緒論......................1
1.1 歷史與發展.....................1
1.2 鈮酸鋰晶體.....................2
1.3 雷射增益介質....................6
1.4 研究動機......................7
1.5 內容概要..................... 11
第二章 理論背景....................12
2.1 相位匹配.....................12
2.2 鈮酸鋰晶體電光效應................20
2.3 電光布拉格繞射元件................22
2.4 共振腔品質因素..................26
2.5 光參量理論....................34
第三章 實驗設計與製作................38
3.1 非週期性晶格極化反轉結構.............39
3.1.1 模擬退火法..................39
3.1.2 模擬退火法設計非週期性晶格反轉結構......42
3.1.3 非週期性晶格極化反轉結構光參量產生器之設計..44
3.2 布拉格繞射元件..................49
3.3 非週期性晶格極化反轉結構元件製作.........50
3.3.1 晶格極化反轉.................50
3.3.2 黃光微影製程.................52
3.3.3 外加高電場晶格極化反轉............55
第四章 實驗量測結果與討論..............61
4.1 實驗儀器與架設..................61
4.2 實驗量測結果...................63
4.2.1 布拉格繞射效率................63
4.2.2 二維週期、非週期性晶格極化反轉光參量產生器..66
4.2.3 二維週期、非週期性晶格極化反轉光參量振盪器..70
第五章 結論與未來展望................74
5.1 結論.......................74
5.2 未來展望.....................75
第六章 參考資料...................79
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指導教授 陳彥宏(Yen-Hung Chen) 審核日期 2011-8-19
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