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Thermal lens shaping for stigmatic Brewster-cut diode-pumped solid-state lasers

Posted on:2005-08-23Degree:Ph.DType:Dissertation
University:University of Illinois at ChicagoCandidate:Rimington, NathanFull Text:PDF
GTID:1458390008987796Subject:Physics
Abstract/Summary:
By combining an elliptical-shaped diode laser pump spot with the one-dimensional heat flow in a laser slab, the thermal lens can be shaped to compensate for astigmatism. The intrinsic astigmatism in a Brewster slab was compensated for in two different laser crystals---Nd:YAG and Nd:GdVO4---using this thermal lens-shaping technique. The modeling of the lens allowed the estimation of the thermo-optic coefficient of Nd:GdVO4, and it was found to be 4 (+/-1) x 10-6/K.
Keywords/Search Tags:Lens, Thermal, Laser
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