High-power Er:YAG laser with quasi-top-hat output beam

High-power Er:YAG laser with quasi-top-hat output beam

A simple method for simultaneously exciting the fundamental (TEM00) transverse mode and first order Laguerre-Gaussian (LG01) donut mode in an end-pumped solid-state laser to yield a quasi-top-hat output beam is reported. This approach has been applied to an Er:YAG laser, in-band pumped by an Er,Yb f...

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Veröffentlicht in:Optics letters 2012-05, Vol.37 (9), p.1463-1465
Hauptverfasser: Kim, J W, Mackenzie, J I, Hayes, J R, Clarkson, W A
Format: Artikel
Sprache:eng
Schlagworte:
Beams (radiation)
Continuous fibers
Erbium
Excitation
Fiber lasers
Lasers
Pumps
Solid state lasers
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Zusammenfassung:A simple method for simultaneously exciting the fundamental (TEM00) transverse mode and first order Laguerre-Gaussian (LG01) donut mode in an end-pumped solid-state laser to yield a quasi-top-hat output beam is reported. This approach has been applied to an Er:YAG laser, in-band pumped by an Er,Yb fiber laser, yielding 9.6 W of continuous-wave output at 1645 nm in a top-hat-like beam with beam propagation factor (M2)
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.37.001463