研究目的
Investigating the influence of pumping power, fiber length, reflectance of cavity mirror and other related parameters on the performance of the Yb3+ doped double-clad fiber laser.
研究成果
The slope efficiency tends to be a constant with the increase of fiber length, which is consistent with the variation of output power with fiber length. For different pumping wavelengths, the optimal length of the gain fiber is not the same, and it is also different from the optimal length determined by the minimum pumping threshold. Therefore, in the design of fiber lasers, we should consider comprehensively to determine the appropriate fiber length.
研究不足
The study is based on theoretical calculations and numerical simulations, which may not fully capture all real-world complexities and variations in fiber laser performance.
1：Experimental Design and Method Selection:
A theoretical model is established based on the energy level structure of Yb3+. The influence of various parameters on laser performance is analyzed using MATLAB software.
2：3+. The influence of various parameters on laser performance is analyzed using MATLAB software.
Sample Selection and Data Sources:
2. Sample Selection and Data Sources: The study uses a first-order over-refractive index distribution fiber with Yb3+ ions doped in the core.
3：List of Experimental Equipment and Materials:
The study involves numerical simulation with parameters such as pumping light wavelength, signal light wavelength, and reflectivity of mirrors.
4：Experimental Procedures and Operational Workflow:
The propagation equation of Yb-doped double-clad fiber laser in steady state is expressed and solved using numerical analysis method.
5：Data Analysis Methods:
The relationship between output laser power and various parameters is analyzed with the help of MATLAB software.
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