The Performance Analysis Of EDFA In The Space Radiation Circumstance

Compared with microwave communication, space optical communication has much superiority: much greater communication capability, narrow beam, good direction, much greater power density functions, lesser antenna size and whole mass,and high capability of anti-electromagnetism and secrecy. Because of its high function-price ratio, under the condition of transmitting same information and same data rate, it is very fit for high data transmission ratio between satellite and satellite, satellite and space shuttle, and so on. So each country attaches important attention to space optical communication.It is one of the key techniques of the space optical communication that researching the durability of EDFA applying to the radiation in the space optical communication. According to the high technique task about space optical communication arranged by relative department of government, this paper accomplish theoretic analysis,modeling and simulation, expatiation and probability analysis are put forward based on EDFA applying to space radiation environment.The importance and meaning of the durability of EDFA applying to the radiation in the space optical communication is presented in the paper. The application foreground as well as development trend about optical device are introduced. Then the main structure, theoretic model and space radiation environment are narrated, especially, the radiation effects on EDFA are discussed. The chapter of theoretical analysis and experiment includes radiation induced loss, using wavelength, EDFA module testing, radiation dose, dose rate. The last, we advance how to design and choose EDFA applying to the radiation in the space optical communication.From the researching in the paper, we master the process and result of space radiation how to effects EDFA. we proved the feasibility of EDFA applying to the radiation in the space optical communication in theoretic.