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Efficient acousto-optically Q-switched intracavity Nd:YAG/KTiOAsO4 optical parametric oscillator

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Abstract

An efficient singly resonant intracavity optical parametric oscillator (OPO) is demonstrated based on a type II non-critically phase-matched KTiOAsO4 (KTA) crystal. A diode-end-pumped acousto-optically (AO) Q-switched Nd:YAG laser is used as the pumping source. Under a LD power of 7.43 W and a pulse repetition rate of 15 kHz, we obtain a signal power of 0.93 W, corresponding to an optical-to-optical conversion efficiency of 12.5%. This is the highest efficiency reported for the intracavity KTA OPOs. Theoretical analysis on the power characteristics of the OPO is performed. It is proved from the theoretical results that the reflectivity of 63% at the signal wavelength (1535 nm) is a good selection for high average power and high conversion efficiency.

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Authors and Affiliations

  1. School of Information Science & Engineering, Shandong University, Ji’nan, Shandong, 250100 , P.R. China

    Z. Liu, Q. Wang, X. Zhang, Z. Liu, J. Chang, H. Wang, S. Fan, W. Sun & G. Jin

  2. State Key Laboratory of Crystal Materials, Shandong University, Ji’nan, Shandong, 250100, P.R. China

    X. Tao, S. Zhang & H. Zhang

Authors
  1. Z. Liu
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  2. Q. Wang
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  3. X. Zhang
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  4. Z. Liu
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  5. J. Chang
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  6. H. Wang
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  7. S. Fan
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  8. W. Sun
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  9. G. Jin
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  10. X. Tao
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  11. S. Zhang
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  12. H. Zhang
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Correspondence to X. Zhang.

Additional information

PACS

42.65.Yj; 42.60.Gd; 42.55.Xi

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Liu, Z., Wang, Q., Zhang, X. et al. Efficient acousto-optically Q-switched intracavity Nd:YAG/KTiOAsO4 optical parametric oscillator. Appl. Phys. B 92, 37–41 (2008). https://doi.org/10.1007/s00340-008-3072-9

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  • DOI: https://doi.org/10.1007/s00340-008-3072-9

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