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Linearly polarized Q-switched pulse Yb fiber laser with average output power over 10 W

✍ Scribed by Y.X. Wang; D.Z. Yang; P.P. Jiang; Y.H. Shen

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 55 KB
Volume: 6
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200910019

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✦ Synopsis

We report an acousto-optic (AO) Q-switched fiber laser with linearly polarized short pulse output. The fiber laser was set up by applying a piece of large mode area polarization maintaining Yb fiber of 1 meter length as the gain medium and a free-space AO Q-switch as the modulating element. The fiber laser was pumped by a fiber pigtailed laser diode working at 976 nm. By suitably adjusting the distance between the AO Qswitch and the cavity mirror, stable Q-switched short pulse laser output was achieved with output power up to 10 W and repetition rate between 20 kHz and 50 kHz. The shortest pulse duration of 33 ns was achieved at repetition rate of 20 kHz when the output power reached about 10 W.

Intensity, dBm

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