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博碩士論文 etd-0830112-120109 詳細資訊
Title page for etd-0830112-120109
論文名稱
Title
3×3熔燒式光纖耦合器製程與分光分析
Fabrication and Wavelength Separation Analysis of 3×3 Fused Tapered Optical Fiber Coupler
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
73
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2012-06-22
繳交日期
Date of Submission
2012-08-30
關鍵字
Keywords
3×3、耦合、拉錐、熔燒、光纖耦合器、分光
3×3, coupler, WDM, fused, taper, coupling
統計
Statistics
本論文已被瀏覽 5691 次,被下載 585
The thesis/dissertation has been browsed 5691 times, has been downloaded 585 times.
中文摘要
利用可調式直徑光纖熔接平台研製125μm 至最小10um 錐度不同的單模光纖,設定不同的製程參數,製作低光能量傳輸損耗的光纖,將n 根光纖置孔徑適當的石英毛細管內,改變錐度製成光纖耦合器[1],透過錐度模型設計和火力參數調整,降低光纖的傳輸損耗和縮小光纖的直徑達到光耦合效果。
我們將參照Eisenmann & Weidel 於1988 年所提出的數學模型計[2]出具有低損耗的熔燒式等邊三角形3×3 光纖耦合器,進而討論其光傳輸的耦合效率。進一步我們將研究非對稱形狀3×3 光纖耦合器,其研究方法是利用電弧加熱,其特點是具有Ω型、寬度780um 的加熱環,可控制光纖較小加熱區域,不同的加熱位置。搭配BeamPorp 模擬抓到拉錐所需的參數,實作再經由切開光耦合器討論其截面,觀察光耦合器截面,藉由光纖不同的幾何分布以及各光纖纖芯彼此間距,討論OSA 量測的光譜圖來改變耦合情形。
目前從2×2 單模光纖耦合器到3×3 單模光纖耦合器,改變了內裝結構使功率耦合有了明顯效果,若能明確控制非對稱耦合的行為則未來達到傳輸功率[3]、功率耦合、多工分光的效果。
Abstract
Use the adjustable diameter fiber splicing platform to manufactured coupler, N fibers were put into the appropriate aperture silica capillaries, and then changed the taper model to manufactured fiber coupler [1], and adjusted the taper model and fusion parameters to reduce the fiber transmission loss and reduce the diameter of the fibers to achieve the optical coupling effect.
We preferred to the Eisenmann & Weidel in 1988 [2]. It is a low loss of the fusion type equilateral triangle of 3×3 fiber coupler. And we will study the asymmetric shape of an 3×3 fiber coupler, the research method is the use of arc heating. The fiber has smaller heating area and the heating position which can be controlled. With the parameters which BeamPorp, we cut the fiber coupler and to discuss its cross-section. By the different geometric distribution of fibers, and the core spacing, we discuss the spectra of the OSA to change the coupling site.
We changed the interior structure to make the power coupling to a marked effect; if we could control the asymmetric coupler explicitly then we could achieve
the transmission power [3], power coupling, and the multiple spectra of light.
目次 Table of Contents
目錄
論文審定書(中文) i
論文審定書(英文) ii
誌謝 iii
中文摘要 iv
英文摘要 v
目錄 vi
圖目錄 viii
表目錄 xi
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 論文架構 3
第二章 光纖耦合器理論與模擬 5
2.1 光纖耦合器 5
2.1.1 2×2光纖耦合器理論 5
2.1.2 對稱結構3×3光纖耦合器理論 8
2.1.3 燒熔式光纖耦合器拉錐外型設計 11
2.2 3×3光纖耦合器模擬軟體簡介 12
2.3 可調式直徑光纖熔燒平台簡介[1] 15
第三章 3×3單模光纖耦合器模擬與分析 20
3.1 3×3單模光纖耦合器的模擬架構 20
3.2 對稱3×3 單模光纖耦合器之模擬分析與結果 20
3.3 非對稱3×3 單模光纖耦合器之模擬分析與結果 26
3.4 3×3單模光纖耦合器模擬之小結 34
第四章 3×3燒熔式光纖耦合器研製與量測結果 35
4.1 概述 35
4.2大直徑光纖熔燒平台 35
4.3製作參數與過量損失的關係 38
4.3.1 燒節點與過量損耗之關係 39
4.3.2 加熱環功率大小與過量損失之關係 40
4.3.3 加熱環掃瞄速度與過量損失之關係 41
4.3.4 加熱環掃描寬度與過量損失之關係 42
4.3.5 光纖水平拉伸速度與過量損失之關係 42
4.3.6 結論 44
4.4 3×3熔燒式光纖耦合器之研製與量測結果 44
4.4.1 2×2熔燒式光纖耦合器之製作與量測結果 45
4.4.3 對稱3×3熔燒式光纖耦合器之製作與結果 49
4.4.4 非對稱3×3熔燒式光纖耦合器之製作與結果 51
4.5 結論 54
第五章 結論 56
5.1 總結 56
5.2 未來方向 57
第六章 參考文獻 58
參考文獻 References
參考文獻
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