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The Performance Analysis of EDFA in the Space Radiation Circumstance

Author: TangCheng
Tutor: MaJing
School: Harbin Institute of Technology
Course: Physical Electronics
Keywords: Space Optical Communication EDFA Space Radiation Gain Noise figure
CLC: TN929.13
Type: Master's thesis
Year: 2007
Downloads: 166
Quote: 1
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Abstract


Has many advantages compared to microwave communications , space optical communication : communication capacity can be increased significantly ; emits a light beam narrow , good direction , and a significant increase in power density ; small antenna size , the quality of the system is relatively small ; immunity to electromagnetic interference , strong confidentiality and so on. Transmission at the same rate and information equipment, optical communication , high cost , very suitable for high digital rate of transmission of information between the satellite and the satellite , satellite and space shuttle space station . Based on the good prospects for the application of space laser communication , space optical communication becomes a new direction in the development of optical communication , has become a national research hotspot . The erbium-doped fiber amplifier (FDFA) Adaptation of the space radiation environment is one of the key technologies of space optical communications research . This thesis is based on research topics relevant state departments issued a high-tech space optical communication , with the overall system design , the completion of the theoretical analysis of the erbium-doped fiber amplifier in the radiation of space , the experimental measurements and feasibility work on the star . Firstly, we discuss the significance of the importance of the erbium-doped fiber amplifier radiation adaptive research and external space optical communication , and then introduced the country 's achievements in the study of space applications of fiber optics . Followed by a discussion of the works and the main structure of the erbium-doped fiber amplifier , analysis , erbium-doped fiber amplifiers and erbium-doped fiber amplifier main constituent elements of radiation effects and made ??a more detailed analysis of the space radiation environment , the erbium-doped fiber the main amplifier radiation effects affect the main factors are discussed . The theoretical analysis and experimental measurements of the erbium-doped fiber amplifier and its components by the loss of radiation were the radiation environment , and recommend how to improve the erbium-doped fiber amplifier in space optical communication applications . This thesis , master space radiation derived from experimental measurements of the specific impact of the process and results of the erbium-doped fiber amplifier , the feasibility of the erbium-doped fiber amplifier applications in space optical communication .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications > Interplanetary optical communications
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