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Research of PMD Measurement

Author: ZhaoFeng
Tutor: HuangZuo；TianTaiPing
School: PLA Information Engineering University
Course: Electronics and Communication Engineering
Keywords: Optical fiber communication Differential group delay Polarization mode dispersion PMD test
CLC: TN929.11
Type: Master's thesis
Year: 2008
Downloads: 25
Quote: 0
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Abstract


In recent years, with the rapid growth of demand in communication bandwidth , fiber-optic communication backbone single - channel transmission rate has been moving in the direction of the high-speed , high-capacity and long-distance development. Especially in the emergence of the erbium-doped fiber amplifier (EDFA) and various dispersion compensation technology , fiber loss and chromatic dispersion no longer play a major restriction on the transmission distance of the system . However , the resulting Another problem - the original tiny polarization mode dispersion PMD ( Polarization Mode Dispersion ) optical fiber communication systems continue to accumulate in the signal transmission process , can not be ignored . Studies show that , when the transfer rate of 10Gbit / s or more , the polarization mode dispersion (PMD) has become significantly affect the transmission performance of the system , the final decision factors that limit the transmission rate and distance of the high - speed optical communication system . So research on how to overcome the impact of polarization mode dispersion on the transmission system to become a pressing issue . However, due to polarization mode dispersion is a random process , with the frequency and ambient temperature conditions and random variation of the polarization mode dispersion compensation becomes very difficult . How to overcome the polarization mode dispersion of the transmission system has become a hot issue of the international research in the field of optical fiber communication . Polarization mode dispersion tasks include basic theory , test methods and compensation . This paper first introduces the concept of polarization mode dispersion characteristics , and polarization mode dispersion technology research progress . By analyzing the statistical characteristics of a first-order PMD the mean difference clustering delay and transmission distance relationship , PMD system restrictions, etc. , discussed the impact of the PMD of the transmission system . Then focused on several commonly used PMD testing technology .

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