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研究生:吳漢傑
研究生(外文):Jonathan Wu
論文名稱:抗諧振反射光波導結構之多模干涉式分光元件之最佳化設計
論文名稱(外文):The Optimal Design of ARROW-Based MMI Power Dividers
指導教授:黃遠東黃遠東引用關係桂正楣
指導教授(外文):Yang-Tung HuangCheng-May Kwei
學位類別:碩士
校院名稱:國立交通大學
系所名稱:電子工程系
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:2002
畢業學年度:90
語文別:英文
論文頁數:52
中文關鍵詞:抗諧振反射光波導多模干涉式分光元件
外文關鍵詞:ARROWMMI
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本論文研究抗諧振反射光波導結構之多模干涉式分光元件並探討最佳化設計。應用多層膜理論和有效折射係數法來分析及設計抗諧振反射光波導結構,然後利用波束傳輸法 (Beam Propagation Method) 來模擬抗諧振反射光波導之多模干涉式分光元件。利用這些分析方法設計了在垂直方向為抗諧振反射光波導結構的多模干涉式分光元件,其材料分別為矽及二氧化矽。因此元件可以應用在以矽為基底的積體光學晶片上。在論文分別設計了1×2、1×4和2×2三種抗諧振反射光波導之多模干涉式分光元件並且模擬其輸出結果。最後利用多加了一層侷限層的方法及微調元件的長度達到最佳化設計的目的。1×2分光元件的損耗為0.0087dB;1×4分光元件的損耗為0.0174dB,分光波道間之不均勻度差為0.0546dB;2×2分光元件的損耗為0.0436dB,分光波道間之不均勻度差為0.0597dB,最佳化設計後之結果均較原設計時之結果為佳。

In this thesis, we investigate the ARROW-based MMI power dividers. The multilayer theory and Effective Index Method are used to analyze the ARROW structures. Then the Beam Propagation Method is used to simulate the performance of the ARROW-based MMI power dividers. Using these analyzing methods, we design the MMI power dividers with ARROW structures in the vertical direction. The materials are Si and SiO2. The devices are suitable for integrated optic circuits on a Si substrate. 1×2, 1×4, and 2×2 ARROW-based MMI power dividers are designed. The optimal design can be obtained by adjusting lateral cladding thickness and the device length. The loss of 1×2 power divider is achieved to be 0.0087dB; the loss of 1×4 power divider is 0.0174dB and the imbalance is 0.0546dB; the loss of 2×2 power divider is 0.0436dB and the imbalance is 0.0597dB. The results based on optimal design are all better than original ones.

1.Introduction
2.Analytic theories and nethods
3.ARROW structures and MMI devices
4.Design of ARROW-based MMI power dividers
5.The method to improve multimode interference
6.Conclusion

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