31 August 2006 Modeling laser brightness from cross Porro prism resonators
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Abstract
Laser brightness is a parameter often used to compare high power laser beam delivery from various sources, and incorporates both the power contained in the particular mode, as well as the propagation of that mode through the beam quality factor, M2. In this study a cross Porro prism resonator is considered; crossed Porro prism resonators have been known for some time, but until recently have not been modeled as a complete physical optics system that allows the modal output to be determined as a function of the rotation angle of the prisms. In this paper we consider the diffraction losses as a function of the prism rotation angle relative to one another, and combine this with the propagation of the specific modes to determine the laser output brightness as a function of the prism orientation.
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Andrew Forbes, Liesl Burger, Igor Anatolievich Litvin, "Modeling laser brightness from cross Porro prism resonators", Proc. SPIE 6290, Laser Beam Shaping VII, 62900M (31 August 2006); doi: 10.1117/12.682843; https://doi.org/10.1117/12.682843
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