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Dual-wavelength oscillation at 1064 and 1342 nm in a passively Q-switched Nd:YVO4 laser with V3+:YAG as saturable absorber

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Abstract

The efficient dual-wavelength oscillation at 1064 and 1342 nm in the passively Q-switched laser based on Nd:YVO4/V3+:YAG is successfully obtained, as demonstrated in this paper. A total average output power of 2.2 W is obtained with 1.3 W for 1064 nm and 0.9 W for 1342 nm under the incident pump power of 7.7 W, corresponding to a total optical-optical conversion efficiency of 28.2%. The pulse widths are 58 and 54 ns for 1064 and 1342 nm, respectively, with the repetition rate of 89 kHz. Moreover, a rate equation model considering the Gaussian spatial distributions of the intracavity photon density and the initial population-inversion density is presented to characterize the dual-wavelength passive Q-switching operation.

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Authors and Affiliations

  1. State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Ji’nan, 250100, China

    J.-L. Xu, H.-T. Huang, J.-L. He, J.-F. Yang, B.-T. Zhang, X.-Q. Yang & F.-Q. Liu

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  1. J.-L. Xu
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  2. H.-T. Huang
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  3. J.-L. He
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  4. J.-F. Yang
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  5. B.-T. Zhang
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  6. X.-Q. Yang
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  7. F.-Q. Liu
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Correspondence to J.-L. He.

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Xu, JL., Huang, HT., He, JL. et al. Dual-wavelength oscillation at 1064 and 1342 nm in a passively Q-switched Nd:YVO4 laser with V3+:YAG as saturable absorber. Appl. Phys. B 103, 75–82 (2011). https://doi.org/10.1007/s00340-010-4288-z

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  • DOI: https://doi.org/10.1007/s00340-010-4288-z

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