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Research on Technologies of 100G Ethernet Physical Layer Optical Transmission

Author: WangLiangXing
Tutor: DongYi
School: Shanghai Jiaotong University
Course: Communication and Information System
Keywords: 100G Ethernet Light modulator Physical media layer Differential quadrupole Phase Shift Keying PRBS multiplexing Optical duobinary
CLC: TN929.11
Type: Master's thesis
Year: 2010
Downloads: 114
Quote: 0
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Abstract


Ethernet in the past 30 years to become the most important of the IP bearer network technology with its advantages of low cost, high reliability, easy installation and maintenance. With the continuous development of Internet technology and e-commerce and the increasing number of users, enterprises and users of data transmission and access bandwidth demand is also growing. In the past ten years, Internet traffic growth every 12 months to 1 times the magnitude of rapid growth, and this trend and no signs of slowing down. In addition, Ethernet telecommunications applications also exacerbate result in the aggregation bandwidth demand growth. 10G Ethernet technology has been insufficient to meet current demand. Therefore, the high-speed 100G Ethernet technology research is imperative. This paper first introduces the progress of of 100G Ethernet international standardization process, combined with actual 100GE products module and experimental release situation clear background and significance of the research. Then affect the performance of high-speed optical communication systems, optical fiber characteristics: loss, chromatic dispersion, polarization mode dispersion and nonlinear effects and respective measures of overcoming the details. Then combine this relying project focuses on the two transmission of 100G Ethernet physical layer and modulation pattern: a 100G-DQPSK modulation Serial transmission and 4X25G double binary modulation parallel transmission. Next three implementations of 100Gb / s DQPSK serial transmission scheme, analysis and comparison of the number of performance through the establishment of appropriate simulation system. Finally completion of 50Gb / s the PRBS signal multiplexing / demultiplexing module, modulation of the transmission module and the transmission module, and on this basis, a 50Gb / s PRBS signal intensity modulated transmission and 25Gb / s of the PRBS duobinary code type transmission experiment, lay an important foundation for future experimental verification of the the 100GE optical interface and transmission technology. The main features of the paper work and innovations including: analyze three RZ-DQPSK method and corresponding simulation system model, respectively, the optical signal-to-noise ratio (OSNR), chromatic dispersion, polarization mode dispersion (PMD) as well as the capacity of the four aspects of fiber nonlinearity comparison and analysis of research and analysis of the advantages and disadvantages of the various modulation and applications. 2 to achieve a 4-way 12.5Gb / s the PRBS to 50Gb / s PRBS signal multiplexing, completed the design and assembly of the module of each of the communication devices, and provide a good basis for the subsequent 100Gb / s experimental system. 3 50Gb / s PRBS signal intensity modulation transfer experiments and 25Gb / s duobinary code transmission experiment data and eye diagram.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications > Optical fiber communication
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