Aimed at the existed questions of last theory model of double cladding erbium-ytterbium co-doped fiber amplifier,a new one is proposed based on the consideration that the population profile of the different energy level is dependent of the signal optical intensity in the fiber core cross section. With the theory model , we numerically analyzed the uppre state population distribution of the erbium and ytterbium , the result shows its rationality.
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夏贵进,张 旭,张居梅.双包层Er2Yb 共掺光纤放大器理论模型研究[J].激光与红外,2004,34(5):364~367 . Study on Theory Model of Double Cladding Erbium-YtterbiumCo-doped Fiber Amplifiers[J]. LASER & INFRARED,2004,34(5):364~367