1997 Volume 4 Issue 1B Pages 170-175
A numerical model based on ray optics formulation taking the optical path length into account was described and applied to numerical investigations on a thermal birefringence compensation scheme proposed and experimentally demonstrated by Q. Lü et al. [Opt. Quantum Electron. 28 (1996) 57]. Taking into consideration the thermal lensing effects of laser rods depolarization losses and spatial intensity profiles of depolarized beams were calculated for the scheme. It was theoretically confirmed that using a polarization rotator and imaging optics effective compensation for the birefringence in rods is possible for a wide range of pumping power.
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