臺灣博碩士論文加值系統

隨著資訊大爆炸的時代來臨，人們對社群網站及軟體的依賴，對資訊傳輸流量的要求也日漸升高，被動光網路是一個有效解決需求量的極佳辦法。國際組織FSAN制定了命名為NGPON2的下世代被動式光網路，光纖傳輸距離為20公里至100公里，並提供40Gb/s網路傳輸量，支援每個用戶1Gbps的使用流量。
在本篇討論中，我們使用正交多頻分波多工的系統傳輸，將系統分成八個通道，使用自相位調變(SPM)解決RF Power Fading，並用非線性失真補償技術提高傳輸速率。在整個傳輸過程中沒有使用光放大器並且重新使用了10GHz的電吸收調變器(EAM)和感光二極體(PIN)，在經過60公里的傳輸之後總傳輸量可達400Gbps，每個通道的損耗預算為24-dB，支援64位用戶超過6Gbps的使用流量。

Since the era of information explosion is coming and public’s reliance of social media, the needs of data transmission is getting larger nowadays. Passive optical network (PON) is a promising way to achieve the requirement. In the standard of next-generation PON (NGPON2) by Full Service Access Network, the fiber distance is 20-km to 1000-km, and provides 40-Gbps network transmission capacity to support 1-Gbps data rate per optical network unit (ONU).
In this paper, we employ WDM-OFDM PON system to the eight channels. We solve the RF power fading by self-phase modulation (SPM) effect and improve the data rate by the non-linear distortion compensation technology. There are not any inline amplifier and pre-amplifier through the entire system, and we reuse the 10-GHz EAM and PIN, the data rate after 60-km transmission can reach 400Gbps data rate, the loss budget is 24-dB per channel. Therefore it can support 64 ONUs with >6-Gbps capacity.

Content
Acknowledgement………………………………………………………i
Chinese abstract…………………………………………………………ii
English Abstract…………………………………………………………iii
Contents………………………………………………………………….iv
List of Figures…………………………………………………………viii
List of Tables………………………………………………………xi
Chapter 1 Introduction 1
1.1 Fiber optic communication 1
1.1.1 The evolution of communication 2
1.1.2 Metro traffic 5
1.2 The passive-optical network (PON) 6
1.2.1 The roadmap of PON 7
1.2.2 Next generation PON technology 8
1.3 Motivation 9
Chapter 2 Optical OFDM-IMDD PON system 11
2.1 Introduction of OFDM signal 11
2.1.1 The basic structure of OFDM 12
2.1.2 The advantages and disadvantages of OFDM signal 13
2.2 Challenge of OFDM-IMDD PON 16
2.2.1 RF power fading 17
2.3 Self-Phase Modulation Analysis 19
2.4 Bit-loading algorithm 21
Chapter 3 Volterra series analysis 23
3.1 Introduction 23
3.2 Volterra series: time domain analysis 23
3.2.1 MSE function 23
3.2.2 Wiener solution 24
3.2.3 Volterra nonlinear series expansion from wiener filter 27
Chapter 4 Experimental analysis on 60-km 8-channels OFDM long reach PON 29
4.1 60km 1-channel OFDM transmission system 29
4.1.1 Experimental setup 29
4.2 Fading effect 30
4.2.1 Solution of RF power fading by fading cancelling 32
4.2.2 Solution of RF power fading by SPM effect 33
4.3 60-km 8-channel OFDM transmission system 34
4.3.1 Experimental setup 34
4.3.2 Challenge of WDM 38
Chapter 5 Conclusions 50
5.1 Overview of the thesis 50
5.2 Benchmark 52
5.3 Future work 54
References 55

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