Computation of higher-order waveguide modes by imaginary-distance beam propagation method |
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| Authors: | J C Chen S Jüngling |
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| Institution: | (1) Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 02139 Cambridge, MA, USA;(2) Research Laboratory of Electronics, Massachusetts Institute of Technology, 02139 Cambridge, MA, USA |
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| Abstract: | Abstact Yevick and Hermansson presented an efficient numerical method for calculating fundamental modes of optical waveguides. We extend their technique to higher-order eigenmodes. Using a finite-difference beam propagation method, we obtain propagation constants and field profiles for the three lowest-order TE modes in an asymmetric rib waveguide. |
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