Nd lasers operating on the <sup>4</sup>F<sub>3/2</sub> to <sup>4</sup>I<sub>9/2</sub> transition, usually at ∼0.94 µm, can provide a useful source for many applications when they operate efficiently. Both efficiency and energy output are substantially increased by two new approaches: improvement of the basic design and the use of new laser materials, specifically, Nd:GYAG. Laser performance and gain results for both Nd:YAG and Nd:GYAG lasers that operate on the <sup>4</sup>F<sub>3/2</sub> to <sup>4</sup>I<sub>9/2</sub> transition are reported as a function of temperature. For the sake of comparison, results for these lasers when they operate on the <sup>4</sup>F<sub>3/2</sub> to <sup>4</sup>I<sub>11/2</sub> transition at 1.064 µm are reported as well. In addition, preliminary second-harmonic generation results for this 0.94-µm laser are reported.
© 1999 Optical Society of America
(140.3380) Lasers and laser optics : Laser materials
(140.3430) Lasers and laser optics : Laser theory
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
Norman P. Barnes, Brian M. Walsh, Ralph L. Hutcheson, and Randy W. Equall, "Pulsed4F3/2 to 4I9/2 operation of Nd lasers," J. Opt. Soc. Am. B 16, 2169-2177 (1999)