28 February 2014 Simulation of birefringence in laser crystals
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Abstract
Thermal lensing e ects and birefringence in laser crystals strongly in uence beam quality of high power solid state lasers. Particularly, the e ects of birefringence are important in laser ampli ers using Nd:YAG crystals. To study these e ects, a simulation tool was developed, which allows to calculate birefringence in laser crystals for di erent kind of crystal cuts and pumping con gurations. The photoelastic e ects were accurately calculated by FE method. Simulation results are presented for di erent crystals and pumping. We also show that birefringence is not radially symmetric for a 111-cut Nd:YAG crystal, even when the pumping con guration is radially symmetric.
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Thomas Graupeter, Thomas Graupeter, Christoph Pflaum, Christoph Pflaum, } "Simulation of birefringence in laser crystals", Proc. SPIE 8959, Solid State Lasers XXIII: Technology and Devices, 89591S (28 February 2014); doi: 10.1117/12.2037321; https://doi.org/10.1117/12.2037321
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