24 November 2009 Experimental study and theoretical simulation for high gain compact Er3+-Yb3+-codoped fiber laser
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Proceedings Volume 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration; 75090N (2009) https://doi.org/10.1117/12.837930
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China
Abstract
Heavy Er3+-Yb3+-codoped fiber lasers can provide high gain laser emission, but the energy transfer and cumulative transfer processes between Er3+ and Yb3+ cannot be neglected. In this paper, the cumulative transfer and double-energy transfer processes are considered in the propagation equation and rate equation model. And we use this model to simulate the lasing operation of a short Er3+-Yb3+-codoped phosphate fiber laser. Then a 10.4 cm compact fiber laser with an output power of 170.4 mW, a bandwidth of 0.053 nm and a slope efficiency of 35.3% is demonstrated in experiment. The experimental results show that the theoretical model we used is more accurate than former models. Finally, the dependence of output power on output coupler reflectivity, active fiber length and Er3+-Yb3+ concentrations are investigated numerically. According to the simulation, when the pump power is less than 700 mW, Er3+ concentration of 1.0-1.2×1026 ions/m3, Yb3+ concentration of 4.0-8.0×1027 ions/m3, output coupler reflectivity of 0.7-0.8 and fiber length of 8-12 cm are desirable to optimize the performance of Er3+-Yb3+-codoped phosphate fiber laser. PACS 42.60.Pk; 42.55.Wd
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Feng Song, Feng Song, Zhenzhou Cheng, Zhenzhou Cheng, Changguang Zou, Changguang Zou, Lanjun Luo, Lanjun Luo, Yingying Cai, Yingying Cai, Wenyi Piao, Wenyi Piao, Chen Wei, Chen Wei, Jianguo Tian, Jianguo Tian, } "Experimental study and theoretical simulation for high gain compact Er3+-Yb3+-codoped fiber laser", Proc. SPIE 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 75090N (24 November 2009); doi: 10.1117/12.837930; https://doi.org/10.1117/12.837930
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