Dependence of dispersive and birefringence properties of silicon nanowires on waveguide dimensions

作者：Daniel Brian A^*; Agrawal Govind P

来源：Optics Letters, 2010, 35(2): 190-192.

DOI：10.1364/ol.35.000190

We study numerically the dependence of dispersive and birefringence properties of silicon nanowires on waveguide dimensions and show that they have a strong geometrical dependence when nanowire dimensions become comparable to the wavelength of light inside the device. We develop a graphical method for engineering two or more dispersion parameters simultaneously and use it to demonstrate the possibility of fabricating silicon nanowires with flattened dispersion curves over a wide spectral range with normal or anomalous nominal values. We quantify polarization-mode dispersion through the differential group delay and show that it can acquire large values for properly designed nanowires. Our analysis should help in designing silicon-based photonic integrated circuits.

• 出版日期2010-1-15