In this paper we report on the modeling of low index contrast silica glass 90 degrees bend ridge waveguides assisted by a two-dimensional photonic crystal. A three-dimensional finite-difference time-domain (3D-FDTD) based computer code has been used in order to evaluate the transmission characteristics and the in-plane losses of the investigated waveguides having different values of the bend radius. The performance of the bend structure surrounded by two-dimensional photonic crystals is compared to that of a classical bend ridge waveguide and the phenomenon of light confinement is critically analyzed. The device design is optimized for quasi-TM polarization at the wavelength of 1.3 mu m.
Silica glass bend waveguide assisted by two-dimensional photonic crystals / Stomeo, T.; Bergamo, R.; Cingolani, R.; De Vittorio, M.; D'Orazio, A.; De Ceglia, D.; Marrocco, V.. - In: OPTICAL AND QUANTUM ELECTRONICS. - ISSN 0306-8919. - 37:1-3(2005), pp. 229-239. [10.1007/s11082-005-1163-y]
Silica glass bend waveguide assisted by two-dimensional photonic crystals
De Vittorio, M.;D'Orazio, A.;De Ceglia, D.;Marrocco, V.
2005-01-01
Abstract
In this paper we report on the modeling of low index contrast silica glass 90 degrees bend ridge waveguides assisted by a two-dimensional photonic crystal. A three-dimensional finite-difference time-domain (3D-FDTD) based computer code has been used in order to evaluate the transmission characteristics and the in-plane losses of the investigated waveguides having different values of the bend radius. The performance of the bend structure surrounded by two-dimensional photonic crystals is compared to that of a classical bend ridge waveguide and the phenomenon of light confinement is critically analyzed. The device design is optimized for quasi-TM polarization at the wavelength of 1.3 mu m.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
