About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Electronics Letters
Paper
Fibre coupling tolerance modelling of uniform grating coupler on silicon on insulator
Abstract
A novel accurate coupling tolerance modelling for a uniform grating coupler is presented and experimentally verified. The modelling is based on a modified overlap integral method using the combination of two Gaussian beams in the same axis. The tolerance modelling has been evaluated with a uniform grating coupler fabricated by standard CMOS technology with 248nm lithography and compared with finite difference time domain (FDTD) simulations. The modelling results are compared with measured and FDTD-simulated data and good agreement is reported. © 2011 The Institution of Engineering and Technology.