Seider D, Pflaum C, Altmann K (2004)
Publication Language: English
Publication Type: Journal article
Publication year: 2004
Publisher: International Society for Optical Engineering; 1999
Book Volume: 5333
Pages Range: 18-29
URI: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1321875
DOI: 10.1117/12.532578
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 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.
APA:
Seider, D., Pflaum, C., & Altmann, K. (2004). Three-dimensional computation of laser cavity Eigenmodes by the use of finite element analysis (FEA). Proceedings of SPIE, 5333, 18-29. https://dx.doi.org/10.1117/12.532578
MLA:
Seider, David, Christoph Pflaum, and Konrad Altmann. "Three-dimensional computation of laser cavity Eigenmodes by the use of finite element analysis (FEA)." Proceedings of SPIE 5333 (2004): 18-29.
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