The operation of radiation-balanced lasers (RBLs) is analyzed for practical considerations of cavity losses, optimum out-coupling, and radial distribution of pump and laser modes. We derive expressions for laser efficiency… Click to show full abstract
The operation of radiation-balanced lasers (RBLs) is analyzed for practical considerations of cavity losses, optimum out-coupling, and radial distribution of pump and laser modes. We derive expressions for laser efficiency under arbitrary heat loads, discuss the limitations on high-power scaling imposed by thermal gradients in radiation-balanced disk geometries, and propose potential remedies. The effects of parasitic absorption of the pump and fluorescence are evaluated. The analysis is intended primarily for disk lasers but is also applicable to rod laser geometries.
Journal Title: IEEE Journal of Quantum Electronics
Year Published: 2020
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