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  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CA_1

Diode side-pumped, high efficiency Nd:YVO4 laser and improvement in beam quality

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Abstract

Diode pumped solid state laser are developing at a very fast rate. At the same time, materials that in some aspects have better characteristics than Nd:YAG are on the market such as Nd:YVO4, Nd:GdVO4, Yb:YAG and others. Within the existing variety of geometries and gain materials there is one combination that is particularly interesting because of its reduced complexity and high efficiency: the edge-pumped slab-laser using grazing-incidence geometry and a gain media with a very high pump absorption cross-section. Previously, we demonstrated high efficiency in multimode with a side-pumped Nd:YVO4 laser using a grazing incidence geometry [1]. In this work, we describe a compact cavity with high slope efficiency with one pass inside the gain media and a significant improvement in beam quality with a novel cavity with only three mirrors and a second pass inside the gain media. Moreover, this cavity uses joint stability zones, giving therefore almost constant beam parameters throughout a wide range of pump powers.

© 2007 IEEE

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