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研究生:林文瑋
研究生(外文):Wen-Wei, Lin
論文名稱:新型二維光子晶體多模干涉功率分光器之設計與模擬
論文名稱(外文):The Simulation and Analysis of a Novel Multimode Interference-Based Two-dimensional Photonic Crystal Power Splitter
指導教授:劉竹峯
指導教授(外文):Ju-Feng, Liu
口試委員:林義彬
口試委員(外文):Yih-Bin, Lin
口試日期:100年6月24
學位類別:碩士
校院名稱:中華科技大學
系所名稱:電子工程研究所碩士班
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:2011
畢業學年度:99
語文別:中文
論文頁數:57
中文關鍵詞:光子晶體、功率分光器、多模干涉、有限差分時域法
外文關鍵詞:photonic crystal , power splitter , MMI , FDTD
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傳統型多模干涉功率分光器因多模干涉區所產生的駐波現象使傳輸效能受到影響,而為改善由駐波現象所影響的傳輸效率,本論文提出一新型多模干涉光子晶體功率分光器。藉以移動多模干涉區出口和兩輸出波導接面之中間第一根介質柱,再搭配改變其半徑大小與位置來進行模擬。經有限差分時域法分析,結果顯示相較傳統多模干涉功率分光器,本研究分光器之傳輸波譜於長波長波段處之半傳輸截止波長有大幅提升之優點,即可將元件工作帶寬有效提升。
The transmission efficiency of a conventional multimode interference power splitter is spoiled by the oscillation occurred in the multi-mode interference region of the splitter. In order to reduce the oscillation for improving the transmission efficiency, we propose a novel multimode interference-based two-dimensional photonic crystal power splitter. Through fine tuning the position and the radius of the leading central dielectric column between the two output waveguides, we have successfully improved the transmission efficiency of the proposed power splitter. Based on the simulations with the finite different time domain method, we find that the transmission spectra of the proposed splitter have a much higher upper 3db cut-off wavelength than the conventional multimode interference-based photonic crystal power splitter has, and the bandwidth of the proposed splitter is effectively increased up.
目 次
中文摘要 ..................................................................... i
英文摘要 ..................................................................... ii
目次 ......................................................................... iii
表目錄 ................................................... .................... v
圖目錄 ................................................................... .... vi

第一章 緒論 .................................................................1
第一節 光子晶體的基本念 ..............................................1
第二節 光子晶體光子隙 ............................... ................. 2
第三節 光子晶體缺陷與其應用 ...................................... ... 2
第四節 光子晶體波導元件與應用 ....................................... 3
第五節 研究動機 ........................................................ 4
第六節 論文架構 ....................................................... 5
第二章 文獻回顧 .......................................... ................. 9
第一節 高傳輸光子晶體波導大角度彎曲設計 ........................... 9
第二節 多模干涉型光子晶體功率分光器 ................................ 9
第三節 雙週期光子晶體之Y型功率分光器 ... .................. ....... 10
第四節 新型光子晶體Y型功率分光器 .. ....................... .......10
第五節 高傳輸效率之T型功率分光器 ............................ ....10
第三章 理論及分析方法 ........................ ........................... 16
第一節 前言............................................................. 16
第二節 平面波展開法................................................... 16

第三節 有限時域差分法 ............................................. .. 19
第四節 高斯脈衝法 ........................ ...................... ......21
第五節 吸收邊界 ...................................................... .21
第六節 多模干涉背景理論 ........................................ .....21
壹、 自我成像理論 ................ ............ ..................... 22
貳、 多模干涉模態分析 ........ ............ ........................ 22
第四章 傳統多模干涉型光子晶體功率分光器之長度分析................... 24
第一節 前言 ............................................... .... ...... 24
第二節 多模干涉區長度結構分析 .... .................... ............ 24
第三節 多模干涉區長度設計與分析結論 .... .......................... 27
第五章 寬頻多模干涉型光子晶體功率分光器 ..... ........................ 32
第一節 構想參考論文 ... ... .......................................... 32
第二節 數值模擬 ..... ................................................ 33
第三節 結果與討論 ...................................... ...... ....... 35
第六章 結果討論與未來發展 ................. ............................. 52
第七章 參考文獻 . ................................ ........................ 53

參考文獻
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