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研究生:李宗穎
研究生(外文):Tsung-Ying Lee
論文名稱:二微米摻銩光纖雷射及其於製程與應用
論文名稱(外文):2 Micron Thulium Doped Fiber Laser and its Processing and Applications
指導教授:王朝盛
指導教授(外文):Jau-Sheng Wang
學位類別:碩士
校院名稱:國立中山大學
系所名稱:光電工程學系研究所
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:2017
畢業學年度:105
語文別:中文
論文頁數:79
中文關鍵詞:聚甲基丙烯酸甲酯奈米銀線多元醇法摻銩光纖2微米雷射
外文關鍵詞:Silver nanowirePoly(methyl methacrylate)Polyol process2 micron laserThulium doped optical fiber
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2 微米波段紅外雷射有許多在可見光所不具有的特點和可延伸的特殊用途。目前已有相當多應用包括氣體感測、醫療手術、能量傳輸、高增益放大器、紅外雷達、環境感測、焊接、生醫應用,等。
由於稀土元素中銩元素之良好的量子轉換效率與交叉弛豫現象,使其擁有較低的雷射閥值,摻銩光纖擁有1700奈米到2100奈米約略400奈米的操作波長,正好位於所謂眼睛安全範圍,也由於作為其泵補光源的793奈米雷射二極體取得容易,使其近年來成為良好應用於2微米雷射波段之新星。
本研究旨在製作國內首批單模摻銩光纖,以Nufern公司生產之單模摻銩光纖SM-TSF-9/125為比較樣品,截至今日已成功製造出多批不同摻雜濃度之單模摻銩光纖,並以在2 微米波長為高反射率之布拉格光柵光纖作為雷射共振腔結構,產生2微米雷射,量測自製摻銩光纖與比較摻銩光纖其2微米雷射效率,以此為基準,藉以調整其製程參數。
2 微米雷射應用方面,嘗試以2微米雷射作用於多元醇法生長奈米銀線,並以CO2雷射及Nd:YAG雷射比較其異同;也在聚甲基丙烯酸甲酯燒結方面進行嘗試。
2 micron laser has certain characteristics and applications that visible lasers cannot provide as good, such as gas sensing, surgery, free-space transmission, high-gain amplifiers, IR-LiDAR, hazard prevention and rescue, cutting and jointing in manufacture, biomedical application, etc.
It is well known that rare-earth ions can be incorporated into single mode silica fiber, which can then form the basis of efficient fiber lasers. Thulium has emission peaks located at eye-safe wavelengths that spanning 400 nm, ranging from 1700 to 2100 nm. Out of the cross relaxation property such that it could has low lasing threshold by pumping with 793nm laser diodes which is available semiconductor laser diode. Thulium is one of the best candidate for an 2 μm fiber laser material.
The purpose of this study is to develop in-house technology for 2 micron Thulium-doped laser fiber within the specification of Nufern’s SM-TSF-9/12. Until now, we have successfully manufactured different doping concentration of thulium doped fibers, we choice fiber Bragg gratings as the cavity mirrors to generate 2μm fiber lasers, and measure its slope efficiency to adjust the manufacture parameter.
In term of 2 micron laser applications, we using 2 micron laser as the energy source with Polyol process which is a method related to the growth of silver nanowires and make a comparison between 2 micron laser, CO2 laser and Nd:YAG laser. We also have a try on Poly(methyl methacrylate) sintering.
論文審定書(中文) i
論文審定書(英文) ii
中文摘要 iii
Abstract iv
目錄 v
表目錄 vii
圖目錄 vii
第一章 序論 1
1.1 前言 1
1.2 研究目的 2
第二章 摻銩光纖簡介及其雷射理論與製程 3
2.1 摻銩光纖雷射理論 3
2.2 摻銩光纖製程 5
第三章 摻銩光纖光學量測 8
3.1 摻銩光纖雷射共振腔建置與光學量測架構 8
3.2 摻銩光纖雷射光學量測結果 10
3.2.1 第一代國內自製摻銩光纖雷射光學量測 10
3.2.2 第二代國內自製摻銩光纖雷射光學量測 12
3.2.3 第三代國內自製摻銩光纖雷射光學量測 17
3.2.4 2微米雷射輸出功率估計 20
3.2.5 多批國內自製摻銩光纖衰減特性曲線圖 27
第四章 2微米雷射應用於多元醇合成法生長奈米銀線 30
4.1 多元醇合成法生長奈米銀線簡介 30
4.2 紅外雷射作用於多元醇合成法實驗流程與儀器介紹 34
4.2.1 紅外雷射作於多元醇合成法實驗流程 34
4.2.2 紅外雷射作於多元醇合成法儀器介紹 35
4.2.3 紅外雷射光子通量之計算 38
4.3 紅外雷射作用於多元醇合成法生長奈米銀線實驗結果 40
第五章 2微米雷射應用於聚甲基丙烯酸甲酯燒結 57
第六章 結論 63
參考文獻 64
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