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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃鼎偉(Ding-Wei Huang) | |
| dc.contributor.author | Yao-Feng Ma | en |
| dc.contributor.author | 馬躍峰 | zh_TW |
| dc.date.accessioned | 2021-06-15T05:41:28Z | - |
| dc.date.available | 2011-08-22 | |
| dc.date.copyright | 2011-08-22 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-20 | |
| dc.identifier.citation | References
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46783 | - |
| dc.description.abstract | 在本論文中，一種狹縫波導結構已被成功運用來解決設計基礎絕緣上矽的波導原件中，所衍生極化相依性的問題。藉由精確控制狹縫波導的極化相依性，在此發表一個由狹縫波導構成，極化不相依的雙通道定向耦合器。在垂直狹縫的結構下，原件耦合區域長度可小至23.13 μm 並同時達到消光比大於22 dB以及1-dB頻寬大於100 nm的絕佳效能。而在水平狹縫的結構下，原件耦合區域長度可小至27.33 μm 並同時達到消光比大於27 dB以及1-dB頻寬約200 nm的絕佳效能。對於以上兩者其製程誤差的容忍度也有著墨探討。
更進一步的，先前章節中所發表的極化不相依耦合器，已被應用於實現一個由絕緣上矽狹縫波導所構成、極化不相依的跑道型微環狀共振器；並可藉由狹縫波導幾何結構的最佳化過程，以於寬頻寬範圍內維持一個無極化模態色散的運作。二種相互垂直的極化模態其頻譜響應不僅在操作波長相同，並且於C-band及L-band範圍內的共振波長差，如果是在以垂直狹縫結構來設計元件下可小於0.1 nm，而在以水平狹縫結構來設計元件下可小於0.25 nm。此元件的自由頻譜範圍可以達到大於10 nm ，並同時維持一個小於 30 μm的緊密原件尺寸。就目前所知，這是第一個以狹縫波導結構設計的微環狀共振器，可以達到如此無極化模態色散的絕佳效能。 | zh_TW |
| dc.description.abstract | In this dissertation, slot waveguide structures are successfully employed to overcome the problem of polarization dependence in designing fundamental silicon-on-insulator waveguide-based components. Through controlling of the polarization dependence of the slot waveguide, a polarization-independent dual channel directional coupler formed by slot waveguides is proposed. For vertical slot, the length of the coupling region of the device is 23.13 μm while delivering the good performance with the extinction ratio of more than 22 dB and 1-dB bandwidth of larger than 100 nm. For horizontal slot, the length of the coupling region of the device is 27.33 μm while delivering the good performance with the extinction ratio of more than 27 dB and 1-dB bandwidth of around 200 nm. The tolerance of the fabrication error on the practical device is also discussed.
Furthermore, the polarization-independent coupler proposed previously is employed to realize a polarization-independent racetrack type micro-ring resonator formed by silicon-on-insulator slot waveguides as well, in which the polarization-mode dispersion-free operation can be perfectly maintained over a wide spectral range by optimizing the slot waveguide geometry. The spectral responses for both polarization modes are nearly identical not only around the designed operating wavelength but also over C- and L-band with a resonance wavelength mismatch between the two orthogonal polarization modes less than 0.1 nm for vertical slot, and less than 0.25 nm for horizontal slot waveguide structures. The free spectral range of more than 10 nm can be achieved as well as a compact device size of less than 30 μm. To the knowledge it is the first micro-ring resonator that achieves such an excellent polarization-mode dispersion-free operation. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T05:41:28Z (GMT). No. of bitstreams: 1 ntu-100-F94941019-1.pdf: 10182013 bytes, checksum: bb764ea1e021cbde0b1ede877f9e5f8b (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | Index
口試委員會審定書 i 誌謝 ii 摘要 iv Abstract v Index vi Figure Index x Table Index xvii Chapter 1. Introduction 1 1. 1. Historical review of integrated optics 2 1. 2. Polarization of light 4 1.2.1 Polarization basics 5 1.2.2 The polarization ellipse 6 1.2.3 Transverse electric and magnetic modes 8 1.2.4 Polarization-dependent problems in transmission 9 1. 3. Polarization-mode dispersion 11 1. 4. Fundamental components 13 1.4.1 Directional coupler 13 1.4.2 Micro-ring resonator 15 1. 5. Motivation 18 Chapter 2. Theoretical Background 21 2. 1. Optical waveguide principle 21 2.1.1 Rectangular waveguides 23 2.1.2 Slot waveguides 26 2. 2. Coupled-mode theory 32 2.2.1 Coupling of modes in time 32 2.2.2 Coupling of modes in space 33 2. 3. Simulation methods 34 2.3.1 Beam propagation method 34 2.3.2 Finite difference time domain method 37 2. 4. Dispersion 40 Chapter 3. Literature Review 42 3. 1. Control polarization of directional couplers 42 3.1.1 Introduction of polarization splitters 42 3.1.2 Design of polarization splitters 43 3.1.3 Summary 47 3. 2. Apply slot waveguide in micro-ring resonator 48 3.2.1 Introduction of micro-ring resonators 48 3.2.2 Design of micro-ring resonators 50 3.2.3 Experimental results and analysis 52 3.2.4 Utilization of slot waveguides 57 3.2.5 Summary 58 Chapter 4. Control of the Polarization Dependence of a Directional Coupler Formed by Vertical Slot Waveguides 59 4. 1. Design of the vertical slot waveguide 59 4. 2. Supermode theory 62 4. 3. Design of a polarization beam splitter formed by vertical slot waveguides 66 4. 4. Design of a polarization-independent directional coupler formed by vertical slot waveguides 70 4. 5. Discussion and summary 73 Chapter 5. Design of a Micro-Ring Resonator Formed by PMD-Free Vertical Slot Waveguides Operating Over a Wide Spectral Range 77 5. 1. Zero birefringence condition 78 5. 2. Polarization-mode dispersion-free operation 82 5. 3. Polarization-independent directional coupling 84 5. 4. Simulation results and discussion 87 5.5. Summary 90 Chapter 6. Control of the Polarization Dependence of a Directional Coupler Formed by Horizontal Slot Waveguides 92 6. 1. Design of the horizontal slot waveguide 92 6. 2. Supermode theory 94 6. 3. Design of a polarization beam splitter formed by horizontal slot waveguides 98 6. 4. Design of a polarization-independent directional coupler formed by horizontal slot waveguides 102 6. 5. Discussion and summary 104 Chapter 7. Design of a Micro-Ring Resonator Formed by PMD-Free Horizontal Slot Waveguides Operating Over a Wide Spectral Range 108 7. 1. Zero birefringence condition 108 7. 2. Polarization-mode dispersion-free operation 112 7. 3. Polarization-independent directional coupling 114 7. 4. Simulation results and discussion 117 Chapter 8. Conclusion and Future 122 8. 1. Conclusion 122 8. 2. Future work 123 References 124 Biography and Publication 131 Education 131 Journal 131 Conference 132 Work 133 Honor 133 | |
| dc.language.iso | en | |
| dc.subject | 微環狀共振器 | zh_TW |
| dc.subject | 狹縫波導 | zh_TW |
| dc.subject | 絕緣上矽 | zh_TW |
| dc.subject | 極化相依性 | zh_TW |
| dc.subject | 極化模態色散 | zh_TW |
| dc.subject | 定向耦合器 | zh_TW |
| dc.subject | polarization-mode dispersion | en |
| dc.subject | micro-ring resonator | en |
| dc.subject | slot waveguide | en |
| dc.subject | silicon-on-insulator | en |
| dc.subject | polarization dependence | en |
| dc.subject | directional coupler | en |
| dc.title | 應用狹縫波導結構控制絕緣上矽波導之極化相依性 | zh_TW |
| dc.title | Controlling the Polarization Dependence of SOI Waveguides by Using Slot Waveguide Structure | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-1 | |
| dc.description.degree | 博士 | |
| dc.contributor.oralexamcommittee | 魏培坤(Pei-Kuen Wei),王子建(Tz-Jian Wang),林晃嚴(Huang-Yan Lin),王維新(Wei-Seen Wang) | |
| dc.subject.keyword | 狹縫波導,絕緣上矽,極化相依性,極化模態色散,定向耦合器,微環狀共振器, | zh_TW |
| dc.subject.keyword | slot waveguide,silicon-on-insulator,polarization dependence,polarization-mode dispersion,directional coupler,micro-ring resonator, | en |
| dc.relation.page | 133 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-21 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-100-1.pdf 未授權公開取用 | 9.94 MB | Adobe PDF |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。