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

In this paper, we report an active Q-switching of an erbium-doped 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 obta...

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Bibliographic Details
Published in:Optics express 2012-02, Vol.20 (4), p.4397-4402
Main Authors: Escalante-Zarate, Luis, Barmenkov, Yuri O, Kolpakov, Stanislav A, Cruz, José L, Andrés, Miguel V
Format: Article
Language:English
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Summary:In this paper, we report an active Q-switching of an erbium-doped 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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.20.004397