2001
DOI: 10.1023/a:1010894801196
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Abstract: Passing across an abrupt junction from a thick vertically bimodal waveguide to a thinner single mode segment, guided light can undergo complete destructive interference, provided that the geometry and the phases of the modes in the initial segment are properly adjusted. We propose to employ this eect to realize a simple polarizer con®guration, using a strip that is etched from a planar waveguide. A beam of light is made to pass the strip perpendicularly. The light enters from the single mode waveguide outside … Show more

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Cited by 22 publications
(6 citation statements)
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“…The rectangular, segmented structures can be simulated quite accurately and efficiently by mode expansion methods (bidirectional eigenmode propagation techniques) [22,25], where we refer to Refs. [26,16] for details of the present implementation. These simulations are rigorous up to convergence with respect to the extension of the computational window and with respect to the density of the spectral discretization, where forward and backward traveling, radiated and guided parts of the optical fields are taken fully into account.…”
Section: Rectangular Microcavitiesmentioning
confidence: 99%
“…The rectangular, segmented structures can be simulated quite accurately and efficiently by mode expansion methods (bidirectional eigenmode propagation techniques) [22,25], where we refer to Refs. [26,16] for details of the present implementation. These simulations are rigorous up to convergence with respect to the extension of the computational window and with respect to the density of the spectral discretization, where forward and backward traveling, radiated and guided parts of the optical fields are taken fully into account.…”
Section: Rectangular Microcavitiesmentioning
confidence: 99%
“…Besides the approximate CMT procedures, the devices were simulated by means of the mode expansion techniques as formulated in Refs. [31,17]. The 2D-TE computations for the resonator devices use uniformly 100 expansion terms on a computational window x ∈ [−20 , 20] µm that is confined by Dirichlet boundary conditions.…”
Section: Numerical Resultsmentioning
confidence: 99%
“…In the next Section 2.1, we outline a simple, somewhat heuristic strategy how to select the many For the simulations we can on the one hand rely on rigorous mode expansion or bidirectional eigenmode propagation simulations [29,30], specifically on the algorithms as described in Refs. [31,17] and on the commercial tool [32]. On the other hand, we apply an ab-initio coupled mode theory model [18], briefly outlined in Section 2.2, that can be regarded as a direct implementation of the abstract design heuristics.…”
Section: Introductionmentioning
confidence: 99%
“…The optical fields inside the photonic crystal structure have been calculated with a 2D simulation, based on solving Maxwell's equations in the frequency domain [18,19]. Fig.…”
Section: Simulation Resultsmentioning
confidence: 99%