The Theoretical Calculation and Influencing Factors of Yb3+Doped Double-Clad Fiber Laser
Citation
Gu, Y., Fu, Y., Lu, H., & Cui, Y. (2019). The Theoretical Calculation and Influencing Factors of Yb3+Doped Double-Clad Fiber Laser. Applied Mechanics and Materials, 893, 52-57. https://doi.org/10.4028/www.scientific.net/AMM.893.52
Keywords
- Energy Level Structure
- Yb3+ doped
- Double-clad Fiber
- Fiber Laser
- Pumping power
- Fiber length
- Reflectance of cavity mirror
- Output power
- Optical-optical conversion efficiency
- Laser gain medium
- Pumping light
- Metastable state
- Ground state
- Stimulated emission
- Spontaneous emission
- Population inversion
- Linear cavity
- Rate equation
- Threshold pumping power
- Slope efficiency
- Gain fiber
Brief
This article analyzes the energy level structure of Yb3+ ions and establishes a theoretical model for Yb3+-doped double-clad fiber lasers, investigating the influence of parameters like pumping power, fiber length, and cavity mirror reflectance on laser performance to determine optimal design considerations.
Summary
This article analyzes the energy levels of Yb3+ ions and develops a theoretical model for Yb3+-doped double-clad fiber lasers. The study investigates how pumping power, fiber length, and the reflectance of the cavity mirrors influence the laser's performance, finding that optimal output power occurs at a certain mirror reflectivity that decreases with higher pump power. The optimal fiber length depends on the pumping wavelength and differs from the length needed for the lowest pumping threshold, necessitating careful design. Additionally, a smaller inner radius of the fiber can improve slope efficiency.
Origin: https://doi.org/10.4028/www.scientific.net/AMM.893.52