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研究生:林哲宇
研究生(外文):Lin, Che-Yu
論文名稱:正交分頻多工被動光網路系統分波多工達高速和高損耗預算
論文名稱(外文):A High-Speed and High Loss Budget WDM-OFDM Long-Reach Passive Optical Network System
指導教授:陳智弘陳智弘引用關係
指導教授(外文):Chen, Jye-Hong
口試委員:賴暎杰、林恭如、魏嘉建
口試日期:2015-07-06
學位類別:碩士
校院名稱:國立交通大學
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:2015
畢業學年度:103
語文別:英文
論文頁數:58
中文關鍵詞:正交分頻多工、被動光纖網路系統、四通道分波多工、自相位調變、volterra 補償技術、大數據
外文關鍵詞:OFDM、long reach passive optical network、four channel WDM system、self phase modulation、voterra compensation、big data
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隨著科技的進步,數位資訊需求量大增,使得區域型網路流量成指數倍成長,被動式光網路系統成為主要科技之一。為了達到國際標準組織FSAN制訂的下世代被動光纖網路的標準NGPON2,必須將光纖距離範圍從20公里延伸至100公里,並且提供40Gbps網路傳輸量並支援每個用戶1Gbps 的使用傳輸量。光直調偵測正交分頻多工長距離被動光網路系統具有良好的頻寬使用效率以及較低的成本,對於NGPON2的標準是近年來非常適合的一個解決辦法。
我們將正交分頻多工被動光網路系統應用至四個通道分波多工系統中,利用自相位調變方式(SPM)解決RF Power Fading的問題,隨著矽晶體的發展應用數位訊號處理(DSP)的技術,使用非線性失真補償技術提高傳輸量。我們用實驗驗證正交分頻多工技術在四個通道分波多工系統中,傳輸過程沒有加光放大器並且使用10GHz的電吸收調變器(EAM)和感光二極體(PIN),傳輸60公里可以達到200Gbps的傳輸量,每個通道擁有30-dB的高損耗預算,因此,可以支援128位用戶超過1.5Gbps的使用傳輸量。
With the advance in technology, increased demand for digital information. The flow of metro traffic grows exponentially, passive optical network system becomes one of the major technology. In order to meet the standards of next-generation PON (NGPON2) by Full Service Access Network (FSAN), the fiber distance range must be extended from 20 km to 100 km and provides 40-Gbps network transmission capacity to support 1-Gbps data rate for optical network unit (ONU). The Optical OFDM LR-PON with intensity modulation and direction (IMDD) system offer high spectral efficiency and low cost. It’s very suitable for NGPON2 in recent years.
We employ OFDM LR-PON system to the four channels WDM system. We take the self-phase modulation (SPM) into consideration to solve the RF power fading. With the growth of silicon, we apply digital signal processing (DSP) technology to improve the data rate by using non-linear distortion compensation technology. We experimentally demonstrate the WDM-OFDM LR-PON System without inline and pre-amplifier. Employing 10-GHz EAM and PIN, the data rate can reach 200-Gbps with 60-km transmission and each channel has 30-dB high loss budget. Therefore, the OFDM LR-PON transmission in a 4-channel WDM system can support 128 ONUs with >1.5-Gbps/ONU capacity.
Content
Acknowledgement. ……….……………….….….…………….…….…...…….I
Chinese abstract………….….….….….….….….….….….….….….…………II
English Abstract…………………………………………….…………………III
Contents……………………………………………….……………...……….IV
List of Figures……………………………………………...………………….VI
List of Tables……………………………………………..…………………...IX
Chapter 1 Introduction 1
1.1 The fiber-optic communication 1
1.1.1 Evolution of fiber communication 2
1.1.2 Metro traffic 4
1.2 PON network 6
1.2.1 The roadmap of PON 8
1.2.2 Next generation PON technology 9
1.3 Motivation 10
Chapter 2 Optical OFDM-IMDD Long Reach PON 11
2.1 OFDM signal introduction 11
2.1.1 The system model of OFDM 12
2.1.2 OFDM advantages &; disadvantages 13
2.2 Optical IMDD OFDM 16
2.2.1 RF power fading 17
2.3 Self-Phase Modulation Analysis 19
2.4 Bit-loading algorithms 21
Chapter 3 SSII cancellation technique and Volterra series 23
3.1 Subcarrier-subcarrier intermixing interference 23
3.1.1 SSII cancellation algorithm 26
3.2 Volterra series analysis in time domain 28
3.2.1 MSE function 29
3.2.2 Wiener Filter 30
3.2.3 Volterra nonlinear series expansion from Wiener filter 32
Chapter 4 Experimental analysis on 60-km 4-channels OFDM LR-PON 34
4.1 60km 1-channel OFDM transmission system 34
4.1.1 Experimental setup 34
4.2 Fading effect 35
4.2.1 Improvement of fading canceling 36
4.2.2 SPM effect 39
4.3 60km 4-channel OFDM transmission system 40
4.3.1 Experimental setup 40
4.3.2 Challenge of WDM 42
4.3.3 Experimental results 43
Chapter 5 Conclusions 51
5.1 Overview of the thesis 51
5.2 Benchmark 52
References 54
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