✦ LIBER ✦

1.29-W radially polarized and bonded Nd:YAG crystal laser

✍ Scribed by K.G. Xia; K. Ueda; J.L. Li

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 94 KB
Volume: 8
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.201010141

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✦ Synopsis

This letter reports the generation of watt-level radially polarized light from an LD end-pumped Nd:YAG laser by utilizing a photonic crystal grating as the polarization-selective output coupler. The Nd:YAG crystal is bonded with two undoped YAG crystal end caps, which is used to weaken the thermal lens effect and thus enhance the extraction of stored energy in bulk gain material. The radially polarized output from this laser reached 1.29-W laser power, 46.5% slope efficiency and a polarization purity of 97.9%.

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