Numerical simulation of a battlefield Nd:YAG laser

Markus Henriksson; Lars Sjoqvist; Thomas Uhrwing

doi:10.1117/12.630409

3 November 2005 Numerical simulation of a battlefield Nd:YAG laser

Markus Henriksson, Lars Sjoqvist, Thomas Uhrwing

Proceedings Volume 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II; 59890I (2005) https://doi.org/10.1117/12.630409
Event: European Symposium on Optics and Photonics for Defence and Security, 2005, Bruges, Belgium

Abstract

A numeric model has been developed to identify the critical components and parameters in improving the output beam quality of a flashlamp pumped Q-switched Nd:YAG laser with a folded Porro-prism resonator and polarization output coupling. The heating of the laser material and accompanying thermo-optical effects are calculated using the finite element partial differential equations package FEMLAB allowing arbitrary geometries and time distributions. The laser gain and the cavity are modeled with the physical optics simulation code GLAD including effects such as gain profile, thermal lensing and stress-induced birefringence, the Pockels cell rise-time and component aberrations. The model is intended to optimize the pumping process of an OPO providing radiation to be used for ranging, imaging or optical countermeasures.

Citation Download Citation

Markus Henriksson, Lars Sjoqvist, and Thomas Uhrwing "Numerical simulation of a battlefield Nd:YAG laser", Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 59890I (3 November 2005); https://doi.org/10.1117/12.630409

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