本論文主要探討蝶式雷射模組中光纖之銲後位移問題。現今此類
光電模組大多使用雷射銲接技術構裝，由於銲接時在熔池附近材料會
因高溫迅速熔融及凝固，導致熔池固化過程中出現複雜之殘留應力分
佈，進而使原本對位好之光纖產生銲後位移(Post-Weld-Shift)，嚴重影
文中主要利用有限元素軟體Marc，配合彈塑模式與溫變材料特
性，模擬銲後位移與殘留應力分佈。並使用光學設計軟體Zemax 分
析其對耦光效率之影響；主要討論之銲後位移影響參數有：銲接順
序、銲接能量、以及光纖套管初始位置。文章中亦對銲後位移之可能
補正技術(Laser Harmering)進行探討。
研究中發現銲接順序及銲接能量均將明顯影響銲後位移，若做一
定程序調整，可大幅降低銲後位移，提高成品良率。此外，適當光纖
套管預置位置，再搭配銲後位移補正技術，將可有效保持光纖在最佳
耦光位置，文中亦提出三種可大幅提高耦光效率之銲接程序組合。

The post-weld-shift (PWS) introduced in the butterfly laser packaging
is investigated in this study. The elastic-plastic-thermal coupled finite
element model is employed in the stress and deformation analyses. The
temperature dependent material properties are used to calculate the
residual stresses and the post-weld shift distributions during the
packaging process. The finite element package ‘MARC’ is used in this
study. And the commercial optical software, i.e. ‘Zemax’ is also employed
in laser power coupling efficiency simulation.
The variations of laser welding sequence, Nd-YAG pulse laser power,
and initial ferrule’s alignment position on PWS for butterfly laser
packaging are studied and discussed in this work. The results indicated
adjust the sequence and pulse laser power properly can improve the PWS
in butterfly packing significantly. Besides, the PWS correction technique,
i.e. the ‘Laser Harmering’, is also illustrated in this study. The simulate
results showed that proper arrange the welding processes may improve
the coupling efficiency over 75﹪.

謝誌............................................................................................................I
目錄...........................................................................................................II
圖目錄....................................................................................................IV
表目錄...................................................................................................VII
摘要........................................................................................................VIII
ABSTRACT...............................................................................................IX
符號說明................................................................................................X
第一章緒論....................................................................................1
1-1 前言..........................................................................................1
1-2 蝶式雷射模組構裝流程簡介..................................................8
1-3 文獻回顧................................................................................12
1-4 組織與章節............................................................................14
第二章實驗儀器與模擬軟體之介紹..........................................15
2-1 實驗儀器之介紹....................................................................15
2-2 使用軟體簡介........................................................................20
2-2-1 MSC.PATRAN 簡介.................................................20
2-2-2 MSC.MARC 簡介.....................................................21
2-2-3 ZEMAX 簡介............................................................22
2-3 吸收率之模擬........................................................................24
2-3-1 吸收率之介紹與定義...............................................24
2-3-2 吸收率之計算...........................................................24
iii
2-4 能量損失模擬........................................................................38
第三章雷射參數對銲後位移及能量損失之影響......................46
3-1 分析方法與分析條件設定....................................................46
3-1-1 暫時失效元素介紹...................................................46
3-1-2 分析流程介紹...........................................................47
3-1-3 分析設定介紹...........................................................51
3-2 不同銲接順序對銲後位移及能量損失之分析....................59
3-2-1 光纖固定夾與次模組之銲接順序...........................59
3-2-2 光纖固定夾與光纖套管之銲接順序..........................64
3-3 不同銲接能量對銲後位移及能量損失之分析....................68
3-4 小結........................................................................................78
第四章幾何參數對銲後位移及能量損失之影響......................79
4-1 光纖套管伸出長度之影響....................................................79
4-2 光纖套管向上移動之影響....................................................86
第五章銲後位移補正技術之探討..............................................90
5-1 微調氣動夾之影響................................................................90
5-2 雷射補正技術探討..............................................................101
第六章結論................................................................................. 111
6-1 結論...................................................................................... 111
6-2 未來工作..............................................................................114
參考文獻.................................................................................................115
附錄A KOVAR 材料參數..................................................................119
附錄B 銲後位移之計算方法.............................................................124

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