Smart Q-switching for single-pulse generation in an erbium-doped fiber laser

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2012
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In this paper, we report an active Q-switching of an erbiumdoped fiber laser with special modulation functions and novel laser geometry. We experimentally demonstrate that using such a smart Q-switch approach, Q-switch ripple-free pulses with Gaussian-like shape and 17.3 ns width can be easily obtained. The idea behind the smart Q-switch is to suppress one of two laser waves contra-propagating along the fiber cavity, which arises after Q-cell opening, and to eliminate the minor sub-pulses.
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Escalante-Zarate, L. Barmenkov, Yuri O. Kolpakov, Stanislav A. Cruz Muñoz, José Luis Andrés, Miguel V. 2012 Smart Q-switching for single-pulse generation in an erbium-doped fiber laser Optics Express 20 4 4397 4402
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