Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 10, 2015
|
|
---|---|---|
Article Number | 15005 | |
Number of page(s) | 9 | |
DOI | https://doi.org/10.2971/jeos.2015.15005 | |
Published online | 29 January 2015 |
Regular paper
Polarization insensitive single mode Al2O3 rib waveguide design for applications in active and passive optical waveguides
1
Anadolu University, Faculty of Engineering, Department of Materials Science and Engineering, 26555 Eskişehir, Turkey
2
Anadolu University, Faculty of Engineering, Department of Electrical and Electronics Engineering, 26555 Eskişehir, Turkey
Received:
28
November
2014
Revised:
5
January
2015
Both passive and active, single mode, wavelength and polarization insensitive design of Al2O3 rib waveguides on SiO2 substrate is reported. Influence of the waveguide height, etch depth, waveguide width and operation wavelength to the mode number, mode size, birefringence and polarization sensitivity were analyzed with Beam Propagation Method. Design parameters for targeted properties are computed for waveguide widths ranging from 0 to 10 µm, and for etch depth ranging from 0 to 0.5 µm for fixed waveguide height of 0.5 µm. A design window for a fixed width of 3.5 µm and etch depths between 0.325 to 0.375 µm is identified for single mode, wavelength and polarization insensitive operation of Al2O3 waveguides on thermal oxide. A novel rib TE mode selective filter design is also suggested as an output of the numerical simulations.
Key words: Rib/Ridge waveguide / a-Al2O3 / single-mode / mode selective filter
© The Author(s) 2015. All rights reserved.
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