Nd:YAG end-pumped zigzag multi-pass slab amplifier optimization: numerical and experimental study regarding the saturation effects
Mohanna Najafi, Mahdi Shayganmanesh, M. Mahdi Majidof, Arezou sepehr, Ehsan Tanhaee, Seyed Hassan Nabavi
Abstract
A numerical modeling of Nd:YAG end-pumped zigzag multi-pass slab amplifier is developed. Spatial dependent rate equations have been solved taking into consideration the pump and laser beam saturation effects with regard to overlap correction of the signal path through gain medium. Based on our results, efficient amplifier structure with optimized output power could be designed with respect to the change in the number of signal beam-pass, doping concentration and slab length. In order to verify our modeling an experimental setup is designed.
Topics & Concepts
SlabOpticsZigzagAmplifierMaterials scienceSaturation (graph theory)Laser beam qualityAmplified spontaneous emissionLaserPhysicsLaser beamsOptoelectronicsGeophysicsGeometryCMOSMathematicsCombinatoricsSolid State Laser TechnologiesLaser Design and ApplicationsSpectroscopy and Laser Applications