Importance

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Abstract

A prism gain module is placed in a resonator for generating or amplifying coherent light energy. The module has a first and second side each with a planar surface. The surfaces are partially coated with a reflective material. The first and second sides are angled so that a resonator beam path is formed within the module such that coherent light energy enters an uncoated surface on the first side of the module of Brewster's angle, reflects off of the reflective material on the second and first sides, and then exits the module through the second side with an exit angle also equal to Brewster's angle. The prism gain module provides pump position flexibility by permitting coherent light energy to pump the gain module from multiple sides so long as the coherent light energy is focused along the beam path.

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First Claim