Three-Dimensional Finite Element Computation of Laser Cavity Eigenmodes

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Details zur Publikation

Autorinnen und Autoren: Pflaum C, Seider D, Altmann K
Zeitschrift: Applied Optics
Jahr der Veröffentlichung: 2004
Band: 43
Heftnummer: 9
Seitenbereich: 1892-1901
ISSN: 2155-3165


A new method for computing eigenmodes of a laser resonator by the use of finite element analysis is presented. For this purpose, the scalar wave equation (Δ + k 2)(x, y, z) = 0 is transformed into a solvable three-dimensional eigenvalue problem by the separation of the propagation factor exp(-ikz) from the phasor amplitude (x, y, z) 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 diode-pumped solid-state laser with a thermally lensing crystal inside the cavity, the expected deviation between Gaussian approximation and numerical solution could be demonstrated clearly.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Pflaum, Christoph Prof. Dr.
Professur für Informatik (Numerische Simulation mit Höchstleistungsrechnern)


Pflaum, C., Seider, D., & Altmann, K. (2004). Three-Dimensional Finite Element Computation of Laser Cavity Eigenmodes. Applied Optics, 43(9), 1892-1901.

Pflaum, Christoph, David Seider, and Konrad Altmann. "Three-Dimensional Finite Element Computation of Laser Cavity Eigenmodes." Applied Optics 43.9 (2004): 1892-1901.


Zuletzt aktualisiert 2018-29-06 um 22:10