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Efficient and high-power green beam generation by frequency doubling of acousto-optic Q-switched diode-side pumped Nd:YAG rod laser in a coupled cavity

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Abstract

A 52-W green laser at 532 nm by extra-cavity second-harmonic generation in a coupled-cavity configuration is demonstrated. The fundamental laser is a diode-side-pumped acousto-optic (AO) Q-switched Nd:YAG rod laser producing 84 W of average power at 1064 nm at 8 kHz repetition rate. Type-II phase-matched polished KTP crystal is used as the nonlinear crystal for second-harmonic generation. The individual green pulse width is 50 ns and the fundamental to second harmonic conversion efficiency is 61.8%.

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Authors and Affiliations

  1. Solid State Laser Division, Raja Ramanna Centre for Advanced Technology, Indore, 452 013, India

    S. K. Sharma, A. J. Singh, P. K. Mukhopadhyay & S. M. Oak

Authors
  1. S. K. Sharma
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  2. A. J. Singh
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  3. P. K. Mukhopadhyay
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  4. S. M. Oak
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Correspondence to P. K. Mukhopadhyay.

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Sharma, S.K., Singh, A.J., Mukhopadhyay, P.K. et al. Efficient and high-power green beam generation by frequency doubling of acousto-optic Q-switched diode-side pumped Nd:YAG rod laser in a coupled cavity. Pramana - J Phys 75, 941–945 (2010). https://doi.org/10.1007/s12043-010-0179-4

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  • DOI: https://doi.org/10.1007/s12043-010-0179-4

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