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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 張宏鈞 | |
| dc.contributor.author | Ying-Shuo Pai | en |
| dc.contributor.author | 白英碩 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:29:34Z | - |
| dc.date.available | 2010-08-21 | |
| dc.date.copyright | 2009-08-21 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-19 | |
| dc.identifier.citation | Bibliography
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45599 | - |
| dc.description.abstract | In this research, the ‾nite-di®erence frequency- domain (FDFD) method is adopted
to analyze optical waveguides with di®erent cross-sections and related multi-mode interference (MMI) devices. The perfectly matched layer (PML) is employed as the absorbing boundary of the computing window in the FDFD solver. Several optical waveguides including channel waveguides, rib waveguides, optical ‾bers, photonic wires, and two kinds of low loss fabricated waveguides are analyzed. The concept and phenomena of the MMI are introduced, and we utilize the modal propagation analysis and the FDFD mode solver to analyze and design the MMI. The MMI phenomena for di®erent input positions are also investigated. Finally, we try to design simple MMI power splitter devices using the structure of a photonic wire and a low loss etchless waveguide, respectively, and discuss the imaging length and the coupling e±ciency versus the width of the multi-mode waveguide. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:29:34Z (GMT). No. of bitstreams: 1 ntu-98-R96942080-1.pdf: 13620999 bytes, checksum: 94fc2da0a416f214313f4f631b324c13 (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 1 Introduction 1
1.1 Numerical Schemes for the Analysis of Optical Waveguides . . . . . . 1 1.2 Optical Multi-Mode Interference Devices . . . . . . . . . . . . . . . . 2 1.3 Chapter Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 The Finite-Di®erence Frequency-Domain Method 5 2.1 Central Di®erence Scheme . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Mode Solvers for 1-D Waveguide Problem . . . . . . . . . . . . . . . 6 2.2.1 The TE Polarized Wave . . . . . . . . . . . . . . . . . . . . . 6 2.2.2 The TM Polarized wave . . . . . . . . . . . . . . . . . . . . . 8 2.3 Formulae for Two-Dimensional Problems . . . . . . . . . . . . . . . . 9 2.4 FDFD Method with Perfectly Matched Layers . . . . . . . . . . . . . 12 2.5 Approximation method for the Dielectric Interfaces . . . . . . . . . . 16 2.5.1 Stair-Case Approximation . . . . . . . . . . . . . . . . . . . . 16 2.5.2 Index Average scheme . . . . . . . . . . . . . . . . . . . . . . 16 2.5.3 Proper Boundary Condition Matching . . . . . . . . . . . . . 17 3 Analysis of Two-Dimensional Optical Waveguides 25 3.1 Channel Waveguide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.2 Optical Fiber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.3 Rib Waveguides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.4 Photonic Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.5 Low Loss Silicon Photonic Wire . . . . . . . . . . . . . . . . . . . . . 30 i 4 Analyzing 3-D Multi-Mode Interference Optical Waveguide Sruc- tures 58 4.1 Introduction to Multi-Mode Interference Based on Self-Imaging . . . 59 4.1.1 Self-Imaging Principle . . . . . . . . . . . . . . . . . . . . . . 59 4.1.2 Multi-mode waveguides . . . . . . . . . . . . . . . . . . . . . . 59 4.1.3 Modal Propagation Analysis . . . . . . . . . . . . . . . . . . . 60 4.1.4 Multi-Mode Interference . . . . . . . . . . . . . . . . . . . . . 62 4.2 Procedure of Analyzing Multi-Mode Interference for Channel Waveg- uides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 4.3 Numerical Results of Multi-Mode Interference for Silicon-on-Insulator Photonic Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 4.3.1 Photonic wire . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 4.3.2 Fabricated etchless photonic waveguide . . . . . . . . . . . . . 71 5 Conclusion 98 Bibliography 100 | |
| dc.language.iso | en | |
| dc.subject | 有限差分頻域法 | zh_TW |
| dc.subject | 多模干涉器件 | zh_TW |
| dc.subject | finite difference frequency domain | en |
| dc.subject | multimode interference | en |
| dc.title | 以有限差分頻域法分析光波導與多模干涉器件 | zh_TW |
| dc.title | Analysis of Optical Waveguides and Multimode
Interference Devices Using the Finite-Difference Frequency-Domain Method | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 邱奕鵬,林恭如 | |
| dc.subject.keyword | 多模干涉器件,有限差分頻域法, | zh_TW |
| dc.subject.keyword | multimode interference,finite difference frequency domain, | en |
| dc.relation.page | 105 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-08-20 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
| 顯示於系所單位： | 電信工程學研究所 | |
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