2013
DOI: 10.1088/1674-1056/22/8/084207
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Suppressing the preferential σ-polarization oscillation in a high power Nd:YVO4laser with wedge laser crystal

Abstract: We observe the phenomenon of priority oscillation of the unexpected σ-polarization in high-power Nd:YVO 4 ring laser. The severe thermal lens of the σ-polarized lasing, compared with the π-polarized lasing, is the only reason for the phenomenon. By designing a wedge Nd:YVO 4 crystal as the gain medium, the unexpected σ-polarization is completely suppressed in the entire range of pump powers, and the polarization stability of the expected π-polarized output is enhanced. With the output power increasing from thr… Show more

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