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博碩士論文 etd-0716112-195300 詳細資訊
Title page for etd-0716112-195300
論文名稱
Title
RZ-DPSK 和RZ-DQPSK 系統在長距離光纖通訊系統下 Dispersion Map 設計的影響之理論模擬探討與研究
A Theoretical Study of the Dispersion Map upon Long-Haul RZ-DPSK and RZ-DQPSK Transmission System
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
48
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2012-06-27
繳交日期
Date of Submission
2012-07-16
關鍵字
Keywords
有效面積、色散圖、長距離傳輸、歸零碼差分向二鍵調變、歸零碼差分向一鍵調變
RZ-DPSK, RZ-DQPSK, Long-haul transmission, Dispersion map, effective area
統計
Statistics
本論文已被瀏覽 5656 次,被下載 839
The thesis/dissertation has been browsed 5656 times, has been downloaded 839 times.
中文摘要
現今長距離光纖傳輸系統是一非常重要傳輸訊息的方式,為了更好的傳輸
效率以及傳輸容量長距離光纖傳輸變得非常熱門,因此藉由科技去改善此系統的
表現變得非常重要,如同我們所知歸零碼差分向一鍵調變(RZ-DPSK)和歸零碼差
分向二鍵調變(RZ-DQPSK)已經在長距離傳輸系統有很高的知名度,因為這兩個條
變技術可以大大提升長距離傳輸系統的表現。
此外,色散圖的設計變得非常重要,它與以往的傳統系統使用振幅直接
偵測(IM-DD)技術大大的不同。另外,歸零碼差分向二鍵調變一個信息可以夾帶
兩個位元的資料傳送,所以歸零碼差分向二鍵調變是歸零碼差分向一鍵調變的兩
倍光譜效益,此研究著重色散圖的數據模擬在長距離歸零碼差分向二鍵調變系統
下的各種表現結果分析與研究。
Abstract
Nowadays, the long-haul optical fiber communication system is one of the
important way to convey the information, and there is strong competition of research
in the optical long-haul transmission to achieve high channel bit rates and large
transmission capacity. Therefore, it is important to study a technology to improve the
performance of such system. The return-to-zero differential phase-shift keying
(RZ-DPSK) and the return-to-zero differential quadrature phase-shift keying
(RZ-DQPSK) have received renewed attention recently for the long-haul transmission
systems, because they can improve the transmission performance of the long-haul
system.
Furthermore, the design of the dispersion map becomes significantly different
from that of the conventional system using the intensity modulation direct detection
(IM-DD) scheme. Besides, the RZ-DQPSK can transmit two bits per symbol, so it has
twice the spectral efficiency of the RZ-DPSK. This study is focusing on the difference
of the transmission performance of the long-haul RZ-DQPSK system due to the
dispersion map using the numerical simulation.
目次 Table of Contents
◎ 致謝…………………………………………………………………………... V
◎ Abstract…………………………………………………………………..…VI
◎ 中文摘要………………………………………………………….…….... VII
Chapter1 Introduction
1.1 Background of long-haul optical fiber communication system…………………...1
1.2 Motivation of this study………………...................................................................3
1.3 Structure of this thesis…………………………………………………………......5
References in this chapter………………………………………………………….…..6
Chapter2 Theoretical and technical background of this study
2.1 Theoretical background……………………………………………………………7
2.1.1 Nonlinear Schrodinger equation…………………………………………….7
2.1.2 Split-step Fourier method…………………………………………………..13
2.2 Technical background……………………………………………………………17
2.2.1 Dispersion map…………….…………………………………………17
2.2.2 DQPSK Modulation Format……… ……………………………………….19
Chapter3Transmission performance of long-haul RZ-DQPSK system
3.1 Explanation of the simulation model………….....................................................22
3.2 The performance degradation on long-haul RZ-DQPSK system………………..25
3.3 The effect of zero-crossing points upon RZ-DQPSK system……………………35
Chapter4 Conclusion…………………………………………………………..40
List of Abbreviation…………………………………………………………….41
參考文獻 References
[1] H. Taga, S. -S. Shu, J. -Y. Wu, and W. -T. Shih, “A Theoretical Study of the
Effect of the Dispersion Map Upon a Long-Haul RZ-DPSK Transmission
System”, IEEE Photon. Technology Letter, vol. 19, no. 24, pp. 2060–2062,
December 2007.
21
[2] G. Mohs, W. T. Anderson, and E. A. Golovchenko, “A new dispersion map for
undersea optical communication systems,” in Proc. Optical Fiber Communication
Conf. (OFC 2007), Anaheim, CA, March. 2007, Paper JThA41
[3] “A Study of RZ-DPSK Modulation Scheme upon Long-haul Optical Fiber
Transmission”國立中山大學/光電工程研究所/96/碩士/096NSYS5124049
[4] H. Taga, S. -S. Shu, J. -Y. Wu, and W. -T. Shih, “A theoretical study of the effect
of zero-crossing points within the dispersion map upon a long-haul RZ-DPSK
system,” Optics Express, vol.16, no. 9, pp.6163–6169, April 2008
[5] H. Taga and W. -H. Chung “Impact of dispersion map design upon transmission
performance of long-haul RZDPSK system using dispersion flattened fiber”
Optics Express, vol. 18, no 8, pp. 8332-8337, April 2010
[6] “Theoretical Study to Investigate the Optimum Dispersion Map Design for
Long-haul RZ-DPSK System Using DFF,”國立中山大學/光電工程研究所/97/碩
士/鍾偉宏
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