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論文名稱 Title |
利用溝槽式光纖套管扣件之蝶式雷射模組構裝 Butterfly Type Laser Module Package Using Notch Clip Approach |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
80 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2006-06-17 |
繳交日期 Date of Submission |
2006-07-06 |
關鍵字 Keywords |
雷射銲接、銲後位移 Post-Weld-Shift, Laser welding |
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統計 Statistics |
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中文摘要 |
本論文係利用新設計光纖套管扣件(馬鞍),在扣件上進行打銲, 使扣件產生形變並利用這種形變,來補償因銲後位移(Post- Weld- Shift)所造成之光纖對準偏移的研究。利用Nd:YAG 雷射在刻有半圓 形溝槽之Kovar 鋼片上進行打銲,及超高精度的雷射測位移來量化計算Kovar 鋼片形變的大小,來探討形變程度與溝槽半徑、打銲次數、打銲能量之間的關係,藉由所量測到的資料來決定光纖套管扣件上補銲大小與偏移方向。 欲開發低成本與高效能半導體雷射模組,必須盡量減少銲後位 移,以提高產品的良率。本研究利用一組300 倍的高倍率CCD 與高 解析度的影像擷取卡建立一套高倍數影像擷取系統,並利用 Labview軟體來分析,並量化計算出因銲後位移所造成之光纖對準偏移量及進行補償。本研究共構裝八組光纖套管扣件,補償後的結果顯示耦光效率可回到約原來的80%~90%。因此本研究利用高倍數影像擷取系統的量測技術能用於量化量測銲後位移並進行補償,提高蝶式雷射模組生產技術之可靠度與性能。 |
Abstract |
A notch clip approach to compensate post-weld-shift(PWS) induced by laser welding process in butterfly type laser module packages is investigated. For high-speed laser modules in lightwave communication systems, the butterfly laser modules are widely used. When laser welding is applied to assemble a butterfly package, it is usually necessary to have mechanical elements such as substrates, fiber ferrule, and clip of house materials to facilitate fiber handing and retention within the package. However, during the laser welding process, rapid solidification of the welded region and associated material shrinkage often cause a post-weld-shift between welded components. The PWS significantly affects the package yield. A notch clip approach and measurements employing a high-magnification camera with image capturing system (HMCICS) to probe the PWS induced fiber alignment shifts and welding compensation on notch in high-performance butterfly-type laser module packages are studied. The results show that the direction and magnitude of the fiber alignment shifts induced by the PWS in laser-welded butterfly-type laser module packaging can be quantitatively determined and then compensated. The overall coupling efficiency after this PWS compensation was from 80% to 90%. This notch approach and HMCICS technique have provided an important tool for quantitative measurement and compensation to the effect of the PWS on the fiber alignment shifts in laser module packages. Therefore, the reliable butterfly-type laser modules with a high yield and a high performance used in lightwave transmission systems can be developed. |
目次 Table of Contents |
第一章 緒論 1 1-1 研究背景 1 1-2 研究目的 4 1-3 論文架構 5 第二章 雷射銲接系統介紹 6 2-1 雷射銲接原理 6 2-2 雷射銲接系統 7 第三章 蝶式雷射模組結構與構裝流程 15 3-1 蝶式雷射模組結構 15 3-2 蝶式雷射模組構裝流程 18 第四章 可補銲之光纖套管扣件設計 25 4-1 Kovar 鋼片打銲實驗 25 4-1-1 實驗目的 25 4-1-2 實驗方法與操作變因 25 4-1-3 超高精度雷射測位儀 27 IV 4-1-4 實驗過程與內容 29 4-1-5 實驗之量測結果 32 4-2 可補銲之光纖套管扣件 35 第五章 銲後位移之量測與補償結果 38 5-1 銲後位移的成因 38 5-2 銲後位移量測系統與原理 39 5-2-1 高倍數影像擷取系統介紹 39 5-2-2 銲後位移量測原理 42 5-3 銲後位移的量測步驟 45 5-4 銲後位移補償研究 48 5-4-1 銲後位移補償技術 48 5-4-2 銲後位移補償結果 51 5-5 蝶式雷射模組金相分析結果 61 5-6 位移和耦光功率之模擬 62 第六章 結論與未來工作 64 6-1 結論 64 6-2 未來工作 65 參考文獻 67 |
參考文獻 References |
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