Computation of laser cavity eigenmodes by the use of a 3D finite element approach

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Altmann K, Pflaum C, Seider D
Zeitschrift: OSA trends in optics and photonics
Jahr der Veröffentlichung: 2004
Seitenbereich: 497-502
ISSN: 1094-5695


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 + k2] 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 E(x, y, z) of the time-harmonic electrical field. 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.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

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


Zitierweisen

APA:
Altmann, K., Pflaum, C., & Seider, D. (2004). Computation of laser cavity eigenmodes by the use of a 3D finite element approach. OSA trends in optics and photonics, 497-502.

MLA:
Altmann, K., Christoph Pflaum, and D. Seider. "Computation of laser cavity eigenmodes by the use of a 3D finite element approach." OSA trends in optics and photonics (2004): 497-502.

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