Beam propagation method: Difference between revisions

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m The applications section of the BPM page is updated. It now contains information on recent developments in which the BPM can be used for new applications (also containing a link)
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BPM is a quick and easy method of solving for fields in integrated optical devices. It is typically
used only in solving for intensity and modes within shaped (bent, tapered, terminated) waveguide
structures, as opposed to scattering problems. These structures typically consist of [[isotropic]] optical materials, but the BPM has also been extended to be applicable to simulate the propagation of light in general [[anisotropic]] materials such as [[liquid crystals]]. This allows to [http://www.elis.ugent.be/ELISgroups/lcd/research/bpm.php analyze] e.g. the polarization rotation of light in anisotropic materials, the tunability of a directional coupler based on liquid crystals or the light diffraction in LCD pixels.
structures, as opposed to scattering problems. It is not suited as a generalized solution to Maxwell
equations, like the FDTD or FEM methods.
==BPM software==
* RSoft's [http://www.rsoftdesign.com/products.php?sub=Component+Design&itm=BeamPROP BeamPROP]: vector; commercial, free trial possible
* Optiwave's [http://www.optiwave.com/products/bpm_overview.html OptiBPM]: commercial, free trial possible
* [http://www.elis.ugent.be/ELISgroups/lcd/research/bpm.php FEAB] (Finite Element Anisotropic Beam propagation method): academic, free version available
 
==See also==