NDLI: The effective index of optical waveguide based on finite difference beam propagation method

Content Provider	IEEE Xplore Digital Library
Author	Baghaee, R.M. Hojjat, N.
Copyright Year	2002
Description	Author affiliation: Univ. of Tehran ECE Dept., Faculty of Eng., Center of Excellence on Applied Electromagnetic Systems, North Kargar str. P.O.Box: 14395-515, Tehran, Iran (Baghaee, R.M.; Hojjat, N.)
Abstract	In this paper a new method based on Finite Difference Beam Propagation Method (FD-BPM) is presented to find the effective index of different kinds of optical waveguides. In the first step, we use FD-BPM for the general optical waveguide (Fig.]) which is excited with a Gaussian pulse. In the second step, we trace the propagation of the wave along the waveguide. After some steps, the wave could be decomposed into a set of modes. For each of these modes we compute its energy in all 9 regions of space in order to distinguish the modes that could be propagated. Finally we sweep the frequency and for each frequency we compute the effective index for each mode by using the stored energy in each region. In this way the relation between the stored energy and the effective index is formulated. To verify the developed method and its applicability, the derived equations and computed numerical results are compared with published results available for rib-waveguide and ridged waveguide. A good agreement in each case is found.
Starting Page	246
Ending Page	248
File Size	156632
Page Count	3
File Format	PDF
ISBN	0780384415
DOI	10.1109/MMET.2004.1396996
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-14
Publisher Place	Ukraine
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical waveguides Finite difference methods Optical propagation Electromagnetic waveguides Electromagnetic propagation Frequency Partial differential equations Difference equations Differential equations Beams
Content Type	Text
Resource Type	Article

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