Efficient Dual-Wavelength Nd:YVO₄ Laser at 1085 and 1342 nm
and Sum-Frequency Mixing for an Orange Emission¹

Y. D. Zhao*, Y. Dong, and L. J. Xu

School of Science, Changchun University of Science and Technology, Changchun, 130022 China

*e-mail: zhaoyudan1976@163.com

Received November 29, 2011; in final form, January 2, 2012, 2011; published online September 3, 2012

Abstract—We report on the efficient continuous-wave (CW) dual-wavelength operation of a Nd:YVO₄ laser
at 1085 and 1342 nm. An output power of 1.72 W for the dual-wavelength was achieved at the incident pump
power of 17.4 W. Intracavity sum-frequency mixing at 1085 and 1342 nm was then realized in a KTP crystal to
reach the orange range. A maximum output power of 146 mW in the orange spectral range at 600 nm has been
achieved. The orange output stability is better than 3.8%. The orange beam quality M ² value is about 1.41 and
1.25 in both horizontal and vertical dimensions, respectively.

DOI: 10.1134/S1054660X12100301

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