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@article{faucris.111435104,
abstract = {A new method for computing eigenmodes of a laser resonator by the use of finite element analysis (FEA) is presented. For this purpose, the scalar wave equation [Δ + k^{2}] Ẽ(x, y, z) = 0 is transformed into a solvable 3D eigenvalue problem by separating out the propagation factor exp(-ikz) from the phasor amplitude Ẽ(x, y, x) of the time-harmonic electrical field. For standing wave resonators, the beam inside the cavity is represented by a two-wave ansatz. For cavities with parabolic optical elements the new approach has successfully been verified by the use of the gaussian mode algorithm. For a DPSSL with a thermally lensing crystal inside the cavity the expected deviation between gaussian approximation and numerical solution could be demonstrated clearly.},
author = {Seider, David and Pflaum, Christoph and Altmann, Konrad},
doi = {10.1117/12.532578},
faupublication = {no},
journal = {Proceedings of SPIE},
keywords = {DPSSL; Laser resonators; Laser theory; Numerical eigenmode analysis; Optical resonators; Solid state lasers; Thermal lensing effect},
note = {UnivIS-Import:2015-03-09:Pub.2004.tech.IMMD.c3sim.threed{\_}8},
pages = {18-29},
peerreviewed = {Yes},
title = {{Three}-dimensional computation of laser cavity {Eigenmodes} by the use of finite element analysis ({FEA})},
url = {http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1321875},
volume = {5333},
year = {2004}
}