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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 12,
  • Issue 3,
  • pp. 031404-
  • (2014)

High power diode-side-pumped 1 112-nm Nd:YAG laser based on master-oscillator power-amplifier system

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We demonstrate a high power high beam quality diode-pumped 1 112-nm Nd:YAG master-oscillator poweramplifier (MOPA) laser system. To increase the extraction efficiency and output power, a four-pass amplifier scheme is employed. Finally, the injected laser output power is amplified from 26 to 64 W with beam quality factor M2=2.85. Furthermore, a theoretical model that takes the temporal overlap inversion number dynamics into account is employed to analyze the performance of the MOPA laser system, and a good agreement with the experimental data is obtained.

© 2014 Chinese Optics Letters

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