Optical directional couplers based on SOI-wire waveguides have been modelled by a semi-analytical approach based on the Coupled Mode Theory and Finite Element Method. The modelling is used to obtain analytically optical power at the parallel and cross ports by utilizing numerically calculated coupling coefficients. Geometrical dimensions of the couplers have been optimized to obtain a polarization-independent behaviour. The influence of non-vertical sidewalls on the coupler performance has also been addressed.
Polarization-insensitive directional couplers based on SOI wire waveguides / Passaro, Vittorio; Dell'Olio, Francesco; B., Timotijevic; G. Z., Mashanovich; G. T., Reed. - In: THE OPEN OPTICS JOURNAL. - ISSN 1874-3285. - 2:(2008), pp. 6-9. [10.2174/1874328500802010006]
Polarization-insensitive directional couplers based on SOI wire waveguides
PASSARO, Vittorio;Dell'Olio, Francesco;
2008-01-01
Abstract
Optical directional couplers based on SOI-wire waveguides have been modelled by a semi-analytical approach based on the Coupled Mode Theory and Finite Element Method. The modelling is used to obtain analytically optical power at the parallel and cross ports by utilizing numerically calculated coupling coefficients. Geometrical dimensions of the couplers have been optimized to obtain a polarization-independent behaviour. The influence of non-vertical sidewalls on the coupler performance has also been addressed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
