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18 November 2014 A compact pulse-tunable fiber laser based on pulse-pumped high gain cavity
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We report on the construction of a pulse-pumped fiber laser using highly doped gain fiber within a ring-shaped all-fiber resonator. The pump laser is pulse modulated and coupled into a segment of highly doped Erbium doped fiber. The ring cavity is close-looped in an all-fiber manner. The pulsed-lasing in kHz repetition rate down to single-shot operation are tunable by pulsed-modulation of the pump laser and tuning of an intracavity variable optical coupler. The lasing power increases for a higher pump pulse energy and repetition rate which sets the limit of the output pulse energy. We measure the time-domain characteristics of the lasing pulses and analyze the dynamical property of the pulsed-pumping process theoretically based on time-dependent rate equation.
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Hongdan Wan, Zhiming Lu, Jin Wang, Yu Zhou, and Jingli Wang "A compact pulse-tunable fiber laser based on pulse-pumped high gain cavity", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92660H (18 November 2014);

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