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

Altmann K, Pflaum C, Seider D (2004)

Publication Type: Journal article

Publication year: 2004

Journal

OSA trends in optics and photonics Optical Society of America

Pages Range: 497-502

URI: http://www.opticsinfobase.org/viewmedia.cfm?uri=ASSP-2004-497&seq=0

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.

Authors with CRIS profile

Christoph Pflaum Professur für Informatik (Numerische Simulation mit Höchstleistungsrechnern)

How to cite

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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