Computation of optical modes inside axisymmetric open cavity resonators
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Author / Producer
Date
2003
Publication Type
Report
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yes
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Abstract
The computation of optical modes inside axisymmetric cavity resonators with a general spatial permittivity profile is a formidable computational task. In order to avoidspurious modes the vector Helmholtz equations are discretised by a mixed finite element approach. We formulate the method for first and second order N´ed´elec edgeand Lagrange nodal elements. We discuss how to accurately compute the element matrices and to solve the resulting large sparse complex symmetric eigenvalue problems. We validate our approach by three numerical examples that contain varying material parameters and absorbing boundary conditions (ABC).
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published
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Journal / series
Volume
402
Pages / Article No.
Publisher
ETH Zurich, Department of Computer Science
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Subject
Optical mode computation; Numerical device simulation; Axisymmetric cavity; Body of revolution; Semiconductor laser; Finite element method; Large sparse complex symmetric eigenproblem; Jacobi-Davidson algorithm; NédéLec edge elements
Organisational unit
02150 - Dep. Informatik / Dep. of Computer Science
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Is previous version of: http://hdl.handle.net/20.500.11850/31638