Abstract
From the propagation equations of Yb3+-doped fiber amplifiers, the characteristics of Yb3+-doped double-clad fiber amplifier for 1053 nm pulse amplification are comprehensively analyzed through finite-difference method based on numerical modeling. The steady distributions in the fiber of the upper-level population, pump power, and amplified spontaneous emission with 977 nm forward pumping are calculated. The single pulse waveform distortion after amplification is analyzed. Modeling attains a special input waveform which can deduces the super-Gauss type output after pulse amplification. The most suitable fiber length and the impacts of forward pumping and backward pumping are also discussed.
Original language | Chinese (Simplified) |
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Pages (from-to) | 1022-1026 |
Number of pages | 5 |
Journal | Zhongguo Jiguang/Chinese Journal of Lasers |
Volume | 32 |
Issue number | 8 |
Publication status | Published - Aug 2005 |
Externally published | Yes |