Numerical solution method of nonlinear guided modes with a finite difference complex axis beam propagation method
نویسندگان
چکیده
منابع مشابه
Numerical Solution Method of Nonlinear Guided Modes with a Finite Difference Beam Propagation Method Axis Complex
A method to construct modal fields for an arbitrary oneor two-dimensional intensity dependent refractive index structure is described. An arbitrary starting field is propagated along an imaginary axis using the Finite Difference Beam Propagation Method (FDBPM) based upon the Slowly Varying Envelope Approximation (SVEA). First the modes are found for the linear part of the refractive index struc...
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It is shown that, by adapting the refractive indexes prerequisite for the use of the FDBPM algorithm. We remark in the vicinity of interfaces, the ZD-beam propagation method based On the finite difference (FDBPM) scheme can be made much more effective. This holds especially for TM modes propagating in structures with high-index contrasts, such as surface ;hat the introduction of the adapted ind...
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A method is described to construct modal fields for an arbitrary oneor two-dimensional refractive index structure. An arbitrary starting field is propagated along a complex axis using the slowly varying envelope approximation (SVEA). By choosing suitable values for the step-size, one mode is maximally increased in amplitude on propagating, until convergence has been obtained. For the calculatio...
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ژورنال
عنوان ژورنال: IEEE Journal of Quantum Electronics
سال: 1995
ISSN: 0018-9197
DOI: 10.1109/3.375923