We have covered quite a bit of ground for an introductory text, and it will be of some benefit to briefly review the topics presented. We started by addressing the fundamentals of diode pumping. Concepts were presented that describe optical pumping, laser resonators, modes, and pump optics. We also described the emission features of laser diodes and diode arrays that are used as pump sources, addressing both the spatial and spectral properties. The importance of these concepts for understanding the fundamentals of diode-pumped solid state lasers was noted in several sections.
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