3-Dimensional thermal analysis of Yb-doped gain guided and index-antiguided fiber amplifier |
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| Authors: | Yan Kun-Lun Zhou En-Yu Peng Bo |
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| Institution: | a State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, PR Chinab Graduate College of Chinese Academy of Science, Beijing 100049, PR Chinac Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing 210003, PR Chinad Department of Optical Science and Engineering, Fudan University, Shanghai 200433, PR China |
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| Abstract: | In this paper, the thermal characteristics of gain-guided and index-antiguided (GG-IAG) fiber amplifier were investigated with a 3-D heat flow model, based on rate equations. From the simulation results, it is found that the longitudinal heat conduction has a very important influence on the GG-IAG fiber amplifier temperature distribution, and the GG-IAG fiber amplifier would be subjected to a more serious thermal problem. Finally, the influence of different pump directions, cooling methods, cladding radius and negative refractive index step on the temperature distribution has also been studied. |
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| Keywords: | Gain-guided index-antiguided fiber 3-D thermal analysis Yb3+-doped fiber amplifier |
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