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Khalili Rad H, Zeidaabadi Nezhad A, Hekmat M J. Simulation and Optimization of High Power Ytterbium-Doped Fiber Amplifier for Nanosecond Pulses. ICOP & ICPET _ INPC _ ICOFS 2015; 21 :685-688
URL: http://opsi.ir/article-1-691-en.html
URL: http://opsi.ir/article-1-691-en.html
1- Isfahan University of Technology
Abstract: (3350 Views)
In this paper, the simulation and optimization of Ytterbium-Doped Double-Clad (YDDC) fiber amplifier for amplification of nanosecond pulses with kilohertz repetition rate is presented. First dynamic rate equation model for YDDC fiber amplifier is presented and numerical solution with finite difference method (FDM) is explained. Using this model, several characteristics of YDDC fiber amplifiers such as evolution of pulse waveform, output pulse energy and average output power of inter-pulse Amplified Spontaneous Emission (ASE) versus input pulse energy is simulated. Eventually amplifier length is optimized for maximum average output power in the 915-nm and 976-nm wavelength for forward, backward and bidirectional pump.
Keywords: Ytterbium-doped Double-Clad pulse fiber amplifier, dynamic rate equations, amplified Spontaneous emission, optimization of pulse amplifier
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