Propagation parameters of the beam extracted from a diode pumped Nd:YAG ceramic slab laser with a hybrid stable–unstable resonator |
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Authors: | M Ciofini E Favilla A Lapucci E Sani |
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Institution: | aIstituto Nazionale di Ottica Applicata, INOA-C.N.R., Largo E. Fermi 6 - 50125, Firenze, Italy |
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Abstract: | We analyze the propagation properties of the beam extracted from a diode pumped ceramic Nd:YAG slab laser adopting a hybrid stable–unstable resonator. Such a resonator produces a beam characterized by an Hermite–Gauss mixture-like distribution in one transverse direction and a hard-edge diffracted distribution on the other transverse direction. The beam propagation parameters Mx2 and My2 are measured for different values of the diodes driving current. We obtain a beam parameter product smaller than 3 mm mrad in both transverse directions and in the whole range of powers, up to an extraction of 220 W in a QCW regime. |
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Keywords: | Diode pumped solid state lasers Ceramic YAG lasers Slab lasers |
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