A Planar Waveguide Nd:YAG Laser Using Active Q-Switching of a Hybrid Unstable Resonator

A planar waveguide laser operating in a negative branch unstable resonator is Q-switched by an acoustooptic modulator in a new configuration, providing effective, high-speed switching. The laser using a 200-mum Nd:YAG core, face pumped by 10 laser diode bars, has produced 100-W output in a good beam...

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Veröffentlicht in:	IEEE journal of selected topics in quantum electronics 2007-05, Vol.13 (3), p.638-646
Hauptverfasser:	Jianqiu Xu, Thomson, I.J., Valera, J.D.R., Baker, H.J., Russell, A.B., Hall, D.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustooptic modulator Acoustooptics Bars Beams (radiation) Fiber lasers High speed Laser beams Laser excitation Laser modes Lasers Modulators neodymium:YAG Optical pulses Optical waveguides planar waveguide laser Planar waveguides Pulse rate Pump lasers Q-switching Resonators unstable resonator Waveguide lasers
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Beschreibung
Zusammenfassung:	A planar waveguide laser operating in a negative branch unstable resonator is Q-switched by an acoustooptic modulator in a new configuration, providing effective, high-speed switching. The laser using a 200-mum Nd:YAG core, face pumped by 10 laser diode bars, has produced 100-W output in a good beam quality at 100-kHz pulse rate, and 4.5 mJ at lower frequency with 15-ns pulse duration.
ISSN:	1077-260X 1558-4542
DOI:	10.1109/JSTQE.2007.897183