Modeling of a two-color, two-stage, ultrafast Yb-doped fiber amplifier |
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Authors: | M Hajialamdari AM Alkadry D Strickland |
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Institution: | Department of Physics and Astronomy, Guelph-Waterloo Physics Institute, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1 |
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Abstract: | We have modeled a two-stage, Yb-doped fiber amplifier system to amplify two-color ultrafast laser pulses in near-infrared. The first and second stages namely preamplifier and power amplifier are single-clad, single-mode and double-clad, single-mode Yb-doped fibers respectively. From numerical simulations of the modeled fiber amplifiers, the optimal lengths of the two fibers to have equal power at two colors centered at 1035 nm and 1105 nm are in agreement with our experimental results. Numerical simulations have also been performed to demonstrate the impact of using a flat-top, two-color seed spectrum on the system performance. |
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Keywords: | Modeling Fiber amplifier Yb-doped fiber Ultrafast |
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