Abstract

An ytterbium-doped fiber laser was demonstrated to emit azimuthally polarized light with high laser power and efficiency, in which a birefringent yttrium vanadate (YVO4) crystal was used as the intracavity polarization discriminator. The laser power reached 3.94 W with a slope efficiency of 71%. Our study proved that an efficient, high-power vector fiber laser would be realistic under the utilization of a simple and low-cost birefringent crystal as polarization discriminator.

© 2015 Optical Society of America

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