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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 彭隆瀚 | |
| dc.contributor.author | Zhi-Xian Chou | en |
| dc.contributor.author | 周志賢 | zh_TW |
| dc.date.accessioned | 2021-06-13T03:13:58Z | - |
| dc.date.available | 2021-07-28 | |
| dc.date.copyright | 2011-08-04 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-07-31 | |
| dc.identifier.citation | [1]http://www.mitsubishi-tv.com/laser.html.
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31507 | - |
| dc.description.abstract | 本篇論文主要由三大部分構成：準相位匹配與光參振盪器原理的介紹、光參-倍頻藍光雷射晶片之研製，以及光參-倍頻藍光雷射晶片之光學量測與特性分析。
理論部分，首先闡述非線性頻率轉換與準相位匹配理論，接著介紹光參振盪以及倍頻轉換理論。利用鉭酸鋰晶體在不同操作條件下配合理論去計算，滿足準相位匹配所需之週期大小。利用本實驗室發展的鎳金屬內擴散配合高壓電致極化反轉製程技術，應用於厚度0.75mm之共熔鉭酸鋰基片製作。實驗中設計光參-倍頻藍光雷射晶片，在倍頻部分做了三週期與五週期的設計，光參部份的週期為7.7576um，而倍頻部份的兩種設計分別為4.9514um、4.9865um、5.0218um，以及4.9514um、4.9689um、4.9865um、5.0041um、5.0281um，並成功研製出長13mm的高效率寬頻藍光雷射晶片。 光學量測部分，利用奈秒(~5ns)532nm綠光雷射做為泵浦源，設計一共振腔可共振930nm將所研製完成之雷射晶片置入，測量此光參振盪器之出光轉換效率。我們成功以350mW綠光泵浦搭配準相位匹配級聯狀光參-倍頻藍光雷射晶片，以及雷射共焦腔之設計，實現頻寬1.4nm，斜線效率21%之465nm的高效率寬頻藍光雷射，並得到54mW的藍光輸出，且藍光轉換效率達到15.4%。 | zh_TW |
| dc.description.abstract | This thesis is composed of three parts：(1) the theory of quasi-phase- matching(QPM) and the QPM optical parametric oscillator(OPO), (2) the fabrication technique of one-dimensional periodically poled congruent grown lithium tantalite(LiTaO3) for cascade OPO-SHG 465nm blue laser chip, (3) the measurement and analysis of OPO-SHG blue light generators.
First of all, I will introduce the mechanism of nonlinear frequency conversion and QPM theory, and its application to the optical parametric and second harmonic generation. By using Sellmeier equation, I design the QPM period of periodically poled LiTaO3 (PPLT) for the above application. By taking advantage of the nickel-diffusion assisted electric poling process, I fabricated cascaded OPO-SHG devices on 0.75mm-thick congruent LiTaO3 substrate. For cascaded OPO-SHG PPLT device, I design multi- SHG segment composed of 3 QPM periods with 4.9514 um, 4.9865 um, and 5.0218 um. Another SHG design is composed of 5 QPM periods with 4.9514 um, 4.9689 um, 4.9865 um, 5.0041 um and 5.0281 um. By this design, we achieve OPO-SHG blue laser with high slope efficiency and broad spectrum. Using a 532nm, bean of 5ns pulse width as the pump source, a 13mm long cascaded OPO-SHG chip in a concave laser cavity of 15mm length is shown to generate a 465nm high efficiency broadband blue laser. The spectrum is shown to have a 1.4 nm bandwidth and 21% slope efficiency. By this process, an average output power of 54mW blue light laser has been achieved under a 350mW input green pump, which corresponds to a conversion efficiency of 15.4%. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T03:13:58Z (GMT). No. of bitstreams: 1 ntu-100-R98941097-1.pdf: 3948997 bytes, checksum: 6577ad84a8693adb8df43b36974cce37 (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 第一章 緒論 1
1.1 研究背景 1 1.2 非線性晶體 4 1.3 鉭酸鋰晶體介紹 5 1.3.1 基本特性 5 1.3.2 相變化 6 1.3.3 長晶技術 7 1.4 極化反轉製程介紹 9 1.4.1 鋰離子外擴散法 9 1.4.2 特殊金屬內擴散法 9 1.4.3 質子交換法 10 1.4.4 高電壓致極化反轉法 10 1.4.5 淺層反轉混合高電壓致極化反轉法 10 1.5 非線性頻率轉換 11 1.5.1 倍頻產生簡介 11 1.5.2 光學參量振盪器簡介 11 1.6 論文內容概述 13 第二章 相位匹配理論 14 2.1 非線性頻率轉換與相位匹配 14 2.2 雙折射相位匹配理論 18 2.3 準相位匹配理論 20 2.3.1 一維空間的準相位匹配 20 2.3.2 二維空間的準相位匹配 23 2.3.3 開孔率對一維、二維結構的影響 26 2.4 光學參量振盪器理論 28 2.4.1 傳統光參理論 28 2.4.2 準相位匹配光參理論 31 2.4.3 光學參量振盪器理論 32 第三章 晶體設計與製程 34 3.1 倍頻晶體週期設計 34 3.2 光參振盪器晶體週期設計 37 3.3 級聯光參倍頻寬頻藍光晶片設計 40 3.3.1 寬頻藍光設計 40 3.3.2 寬溫度操作設計 49 3.4 高電壓致極化反轉 52 3.4.1 極化反轉模型 54 3.4.2 高電壓波形 55 3.4.3 反轉時間及電壓 56 3.4.4 液態電極與夾具設計 57 3.4.5 金屬電極定義方式 58 3.5 鎳金屬內擴散機制定義週期性結構 60 3.5.1 定義鎳金屬圖形 63 3.5.2 高溫熱處理 65 3.5.3 高電壓成核時間控制 66 3.5.4 共熔鉭酸鋰製程成果 66 3.6 厚度1mm共熔鉭酸鋰製程研究 68 3.6.1 反面極化反轉製程研究 69 3.6.2 製程結果 72 第四章 光學量測與分析 73 4.1 光學量測架構 73 4.1.1 泵浦雷射 73 4.1.2 系統架構 73 4.2 光參振盪寬頻藍光產生器之量測與分析 75 4.2.1 實驗目的 75 4.2.2 晶片設計 75 4.2.3 實驗結果與分析 78 第五章 結論與未來展望 87 5.1 結論 87 5.2 未來展望 89 參考文獻 90 | |
| dc.language.iso | zh-TW | |
| dc.subject | 藍光 | zh_TW |
| dc.subject | 鉭酸鋰 | zh_TW |
| dc.subject | Lithium Tantalate | en |
| dc.subject | Blue light | en |
| dc.title | 準相位匹配鉭酸鋰高效率寬頻藍光雷射晶片之研製 | zh_TW |
| dc.title | High Efficiency Broadband Blue Laser Based on Quasi-Phase-Matched Periodically-Poled Lithium Tantalate | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 王維新,孔慶昌,賴志明,黃永孟 | |
| dc.subject.keyword | 鉭酸鋰,藍光, | zh_TW |
| dc.subject.keyword | Lithium Tantalate,Blue light, | en |
| dc.relation.page | 92 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-01 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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