Dissertation > Excellent graduate degree dissertation topics show

The Research of 80Gbit/s Fiber Communication System Based Polarization Division Multiplexing

Author: WuZuo
Tutor: YuanXiuHua
School: Huazhong University of Science and Technology
Course: Optical Engineering
Keywords: high-speed optical fiber communication PDM DQPSK
CLC: TN929.11
Type: Master's thesis
Year: 2009
Downloads: 121
Quote: 4
Read: Download Dissertation

Abstract


Recently, research focused on high-speed optical fiber communication system has attracted increasing attention due to the greatly enhanced demand for communication capacity. The high-speed and large-capacity transmission in optical fiber communication system can be realized by various multiplex techniques. In this paper we use polarization division multiplex technology to achieve transmission speed of 80Gbit/s in single wavelength. At the same time, Differential Quadrature Phase Shift Keying (DQPSK) modulation format is utilized in view of the advanced transmission performance in optical fiber communication system.At first, we introduce the overview of various technical schemes used in high-speed optical fiber communication system, and discuss the development and present situation of polarization multiplex technology in high-speed optical fiber communication.Secondly, we described the overall structure of our proposed polarization division multiplex communication system, from the view of basic theory of polarized light, working principle of polarization devices, transmission performance of polarized light in fibers and other relative theories. Modulation and demodulation methods of the DQPSK used in this scheme and the error rate (BER) performance of this system are discussed in details.Finally, we simulate the cross-talk and injuries which are occurred in the transmission link and analysis the characteristics of the whole system which applies DQPSK modulation format. Performance of simulated transmission link is discussed on base of chromatic dispersion (CD), polarization mode dispersion (PMD) and polarization dependent loss (PDL) in polarization division multiplex transmission link. In simulation of the properties of the whole polarization division multiplex communication system, we apply the modulation of DQPSK uses two Mach-Zehnder (M-Z) modulators that are arranged in parallel in the transmitter and coherent demodulation method of the balanced receiver in the receiver, and calculate the maximum transmission distance in system with no compensation for polarization mode dispersion and no regeneration in the transmission link. We also compare system performance of polarization division multiplex system and non-polarization division multiplex system in the same single-wavelength transmission speed at 80Gbit/s.

Related Dissertations

  1. Design and Implementation of Construction Design Workflow Management System,TP311.52
  2. The Research and Development of Project Management System for Financial Equipment Industry Based on PDM,TP311.52
  3. π/4-DQPSK modem technology and FPGA implementation,TN791
  4. Model production data management system designed and implemented,TP311.52
  5. Research of Methods to Upload Large Quantities of Ship Documents in WINDCHILL PDM System,TP391.1
  6. Design and Implementation of Wireless Data Transmission System Based on DSP,TN925
  7. Research and Implementation of High-efficiency File Management Solution Oriented to PDM System,TP311.52
  8. π/4-DQPSK modulation and demodulation of the simulation and FPGA design,TN791
  9. The Design for DQPSK Testing System,TN929.1
  10. Realization of Software Radio Technology-Modulation and Demodulation-Based on FPGA,TN925
  11. Study on Polarizaiton Mode Dispersion Compensation in High-speed Optical Fiber Communication System by Phase-sensitive Amplifier,TN929.11
  12. Research on Hull Production Design Data Management Technology Based on XTPDM,U673.2
  13. Research on Solution for Design and Management to Data Layer of Shipbuilding Informatization Service Platform,U673.2
  14. A Kind of Design and Realization of Modulation & Demodulation Based on Software Radio Technology,TN915.05
  15. The Research and Realization of OFDM Modulation for Meteor Burst Communication System,TN919.3
  16. Study and Implementation of Advanced Modulation Formats in High Speed Optical Fiber Communication Syetems,TN929.11
  17. Research on Modeling and Algorithm of DQPSK Modulation and Demodulation,TN914.1
  18. Research and Implementation based on software radio the QPSK signal modulation and demodulation,TN92
  19. Key Technology Research of WDM-PON with Centralized Light-Wave,TN929.1
  20. Performance Simulation Research on Switching System Based on OC Label and Access Network Based on DQPSK Modulation,TN929.533
  21. Multi-level Phase Modulation Formats and Their Polarization Mode Dispersion Performance in High Speed Fiber-optics Communication System,TN929.11

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications > Optical fiber communication
© 2012 www.DissertationTopic.Net  Mobile