S+C band optical amplification in Er^(3+)-Tm^(3+) co-doped fiber  

作　　者：常军 王青圃 张行愚 刘泽金 刘兆军 

机构地区：[1]School of Information Science and Engineering

出　　处：《Chinese Optics Letters》2006年第2期66-68,共3页中国光学快报（英文版）

基　　金：This work was supported by the China Scholarship Council, the Natural Science Foundation of Shandong Province of China (No. Y2003G01, Y2002G06)the Research Found for the Doctoral Program of High Ed-ucation of China (No. 20020422048).

摘　　要：A new type of optical amplifier based on co-doping erbium in thulium doped fiber is proposed to realize S＋C band gain by dual-wavelength （800＋1410 nm） pumping scheme which is obtainable from laser diode. A novel model is established for the co-doped fiber considering the Er^3＋ to Tm^3＋ energy transfer process. Using appropriate fiber parameters and energy transfer parameters, the coupled rate equations are analyzed and solved, the concentrations of Er^3＋ and Tm^3＋ and fiber length were optimized to get more uniform gain. The results predicted that the S＋C band gain can be achieved at the same time by co-doping erbium in thulium doped fluoride fiber.A new type of optical amplifier based on co-doping erbium in thulium doped fiber is proposed to realize S＋C band gain by dual-wavelength （800＋1410 nm） pumping scheme which is obtainable from laser diode. A novel model is established for the co-doped fiber considering the Er^3＋ to Tm^3＋ energy transfer process. Using appropriate fiber parameters and energy transfer parameters, the coupled rate equations are analyzed and solved, the concentrations of Er^3＋ and Tm^3＋ and fiber length were optimized to get more uniform gain. The results predicted that the S＋C band gain can be achieved at the same time by co-doping erbium in thulium doped fluoride fiber.

关 键 词：Doping (additives) ERBIUM Gain control Light amplifiers Mathematical models Semiconductor lasers THULIUM 

分 类 号：TN25[电子电信—物理电子学]