Stable pulse-compressed acousto-optic Q-switched fiber laser

A novel acousto-optic switch operation by a simple laser-diode pumped acousto-optic, Q-switched, ytterbium-doped, double-clad fiber laser is reported. Stable compressed Q-switched sub-40 ns pulses with a beam quality factor (M(2)=2) are achieved at the repetition rate of 1-50 kHz. Q-switched pulses...

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Veröffentlicht in:	Optics letters 2007-10, Vol.32 (19), p.2774-2776
Hauptverfasser:	Zhao, Hongming, Lou, Qihong, Zhou, Jun, Zhang, Fangpei, Dong, Jingxing, Wei, Yunrong, Wang, Zhijiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Diode-pumped lasers Exact sciences and technology Fiber lasers Fundamental areas of phenomenology (including applications) Laser optical systems: design and operation Lasers Optics Physics Q-switching
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Beschreibung
Zusammenfassung:	A novel acousto-optic switch operation by a simple laser-diode pumped acousto-optic, Q-switched, ytterbium-doped, double-clad fiber laser is reported. Stable compressed Q-switched sub-40 ns pulses with a beam quality factor (M(2)=2) are achieved at the repetition rate of 1-50 kHz. Q-switched pulses of ~20 microJ pulse energy and 35 ns pulse width are obtained at the repetition rate of 50 kHz. Finally, a reasonable explanation of the novel Q-switched operation is presented.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.32.002774