研究目的
Investigating the efficiency, stability, compactness, and cost-effectiveness of cascade co-pumping Erbium/Ytterbium codoped fiber lasers (EYDFLs) compared to other pumping schemes.
研究成果
Cascade co-pumping is the most effective method among the compared pumping schemes for EYDFLs, offering the highest efficiency with the shortest optimal fiber length. Proper management of thermal effects could make it the best strategy for power scaling of high-power EYDFLs or EYDFAs.
研究不足
The study is based on simulations and assumptions, which may not fully capture real-world conditions. Thermal effects, while considered, may require further empirical validation.
1：Experimental Design and Method Selection:
The study compares different pumping schemes for EYDFLs, including cascade co-pumping, off-peak cladding pumping, and core-pumping. Theoretical models and simulation methods are employed to analyze the performance of each scheme.
2：Sample Selection and Data Sources:
The gain fiber is a double cladding EYDF with specific dimensions. Fiber parameters are referenced from previous works.
3：List of Experimental Equipment and Materials:
The study assumes specific pump powers for cladding and core pumps, with detailed fiber specifications.
4：Experimental Procedures and Operational Workflow:
Simulations are conducted with optimized fiber lengths via a recursive procedure. The method is referenced from prior research.
5：Data Analysis Methods:
The analysis focuses on optimal fiber length, output power, maximum temperature, and Yb-ASE power, comparing the efficiency and performance of each pumping scheme.
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