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研究生:謝曜聲
研究生(外文):Yao-Sheng Hsieh
論文名稱:應用於智慧型建築之分波多工被動光網路架構設計之研究
論文名稱(外文):WDM-PON Architectures Designs for Intelligent Building
指導教授:廖顯奎凱紀德
指導教授(外文):Shien-Kuei LiawGerd Keiser
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:光電工程研究所
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:2008
畢業學年度:96
語文別:英文
論文頁數:77
中文關鍵詞:智慧型建築分波多工被動光網路混合放大器
外文關鍵詞:WDM PONintelligent buildingamplifier
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本論文致力於可應用於智慧型建築內之分波多工被動網路架構設計之研究。內文分為兩個部分: 第一部分提出一種可應用於智慧型建築之光被動網路架構之設計。配合現有建築的外部形狀,提出一種由雙中央處理局及雙主骨幹傳輸線,配合簡單的光被動元件如光開關、光功率耦合器及分波多工器等所構成的網路架構。不同於普通的光被動分波網路,論文中所設計的架構能提供包括主骨幹切換及單一樓層切換的完整線路保護功能,使整體傳輸網路的線路存活率大大的提升。此架構能達到10Gb/s 的資料傳輸速率並擁有5dB以上的功率預算,並能對各種不可預期之外力災難擁有高免疫力。建築物能獲得多種對外聯絡的主備援通訊方式。各個使用者度擁有最大的個人資料隱私保護能力,使用者將不再受到隱私外洩的威脅。如此的設計給予了管理者充足的彈性動態頻寬管理能力與使用者數量擴充能力,能在避免重新佈線的情況之下,依使用者數量及需求的流動與變化完成可重構性的服務變更。三級的階層式使用者分級能讓系統可以結合包含分時多工技術在內的各種不同接取技術,大大的擴充使用者容量。其最大之使用者容量為[第一層使用者數目+(光源波道數-第一層使用者數目)×預計分配給第二層使用者之光源數百分比×(分時多工系統最大使用者數目)+(第三層使用者數目)]。
第二部分簡單介紹了可用於光接取網路之混合式全光放大器。結合低摻雜濃度之摻鉺光纖放大器與拉曼放大器,能初步的達到功率等化的目的,最大的增益差距僅有5.5dB。而殘餘功率的分享則可以有效的提高放大器的功率增益約1dB並降低摻鉺光纖放大器之噪音指數約1dB,拉曼放大器約0.4dB。文中並設計了分散式的色散補償機制。除了4041公尺的色散補償光纖外,我們僅需要再多鋪設每個波長所需要的額外長度,能省下大量的色散補償光纖並精確的完成色散補償,讓放大器功能更加完備。
This thesis focuses on the wavelength division multiplex (WDM) passive optical network (PON) architecture designs applied in intelligent building. This thesis is divided into two parts; the first part is to design a novel WDM PON architecture that can be employed in intelligent building. To match the outside shape of traditional buildings, we report and demonstrate a simple network architecture that is consists of double central offices (COs) and backbones. All the optical passive components we used are only simple optical passive components such as switches, power couplers, and WDM multiplexers. In contrast to a classical WDM PON, the proposed architecture has a complete in-line protection switching ability including backbones of whole network and distributed line lines for single floors. A high service survival rate is observed.
The proposed architecture can approach 10Gb/s data rate with power margin over 5dB. It also can provide the network immunity to each unexpected calamities and provide various backup methods for outside communication. The users will not face the threat to compromise of private information and the network administrator can proved a user reconfigurable service.
The three-tier hierarchical service levels may combine with various access technologies including the time division multiplex (TDM) technology and can enlarge the user capacity. The maximum user capacity is [(The user amount of first level) + (laser channels - The user amount of first level) × (The percentage to the user amount of second level) × (The maximum user capacity of TDM system) + (The user amount of the third level)].
The second part discusses the hybrid erbium doped fiber amplifier (EDFA)/Raman fiber amplifier (RFA) we can employ in an access network. With low concentration EDF, the gain can be flattened basically. The maximum gain difference is about 5.5dB only. By sharing the residual pumping power, the noise figure (NF) will also be reduced. The gain improvements are 1dB to EDFA and RFA. The NF improvements are 1dB to EDFA and 0.4dB to RFA. We also introduced a distributed dispersion compensation mechanism. When a common 4041-m dispersion compensation fiber had been set up, only the difference in length between 4041m and other individual DCF lengths for different wavelengths should be set up additionally.
Table of Contents
摘要 I
Abstract II
Table of Contents IV
List of Figures VI
List of Tables X
Chapter 1: Introduction 1
1-1 Overview 1
1-2 Motivation 3
1-3 Organization of thesis 3
Chapter 2 Fundamental introduction of WDM technologies 4
2-1 Basics 4
2-2 Key characteristics of fiber communication 4
2-3 WDM technology 6
2-4 WDM multiplexer 9
2-5 WDM PON 12
Chapter 3 The proposed WDM PON architecture in intelligent building 18
3-1 The definition of intelligent building 18
3-2 WDM PON service for intelligent building 19
3-3 Network topologies 20
3-4 Proposed WDM PON architecture for IB 23
3-5 Comparison between typical and proposed architectures 29
3-6 Summary 30
Chapter 4 Demonstration and estimation 32
4-1 Hierarchical service level 32
4-2 Physical layers 34
4-3 Simulation results 36
4-4 Network efficiency estimation 49
4-5 Summary 51
Chapter 5 Hybrid amplifier 52
5-1 The erbium-doped fiber amplifier and Raman fiber amplifier 52
5-2 Uni-direction C+L band hybrid amplifier 53
5-3 Bi-direction C+L band hybrid amplifier 60
5-3 Summary 61
Chapter 6 Conclusions and future works 63
6-1 Conclusions 63
6-2 Future Works 64
References 65
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