2-D Optical Waveguide Mode Solver
(c) 2010 Andrew SaranganSend questions or comments to
sarangan@udayton.edu
Job Name
example10
This file was last modified on Sun Mar 21 10:29:09 2010
Node
Auto
Node 1: 4GB 64-bit Core 2 Quad 2.40 GHz
Node 2: 12GB 64-bit Core-i7 2.67 GHz
Node 3: 12GB 64-bit Core-i7 2.67 GHz
Node 4: 12GB 64-bit Core-i7 2.67 GHz
Comments
This is a buried channel rectangular waveguide. The overlap integral computes the coupling coefficient (kappa) between two such waveguides spaced 15um apart (center-to-center distance). kappa is 0.3998/cm, or the coupling distance is 39.3mm. It can also be seen that by changing the waveguide spacing to 14.87um (which is one grid point difference), kappa becomes 0.4278/cm, or a coupling distance of 36.7mm. For a spacing of 15.13um (one grid point in the other direction), kappa is 0.3736/cm, or a coupling distance of 42mm. Hence, the coupling distance calculation can be predicted only as laying between 42mm and 36.7mm. This is verified in the BPM simulation (see examples under BPM), which gives 37.2mm.
Polarization
Ey
Ex
Scalar
Symmetry
Symmetric
Antisymmetric
Wavelength (um)
Tolerance
Maximum Iterations
Matrix Solver
Direct Matrix Solver
Sparse Matrix Solver
X-Grid Definition
0.0
Y-Grid Definition
Index Description
X-Grid:
Y-Grid:
Function:
b 0.46 u 0.01 -3 -3 -3 3 3 3 3 -3
Create Index Only
Trial Function
Estimated Effective Index
X-Grid:
Y-Grid:
Function:
b 1.0
Create Trial Function Only
Overlap Integral
X-Grid:
Y-Grid:
Function:
u 405.3 -3 -3 -3 3 3 3 3 -3
Create Overlap Function Only
Jobname
:
BPM Input Field
BPM Output Field
2D Mode
Z
=
X & Y Offsets
:
Run Overlap
< E1|f|E2 >
|0.399800,0.000000| = 0.399800
(Plot)
Output Files
Job Control Panel
Console Output
Field Data
/
Index Data:
(Plot)
Far-Fields:
(Plot)
Convergence Movie
Cancel
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