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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 3,
  • Issue 11,
  • pp. 647-649
  • (2005)

550-W diode-pumped Nd:YAG disk laser

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Abstract

When a thin laser crystal disk is used with a nearly flat-top pump profile, the heat flux can be considered to be one-dimensional. This results in a homogeneous temperature and stress profile within the laser medium leading to reduction of thermal effects. A nearly flat-top pump profile is achieved with a two-pass cylindrical-lens coupling system. An average output power of 550 W is obtained by an average pumping power of 1650 W with a 40-mm diameter Nd:YAG disk. The optical-optical efficiency is 33%.

© 2005 Chinese Optics Letters

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