Title :
Fibre coupling tolerance modelling of uniform grating coupler on silicon on insulator
Author_Institution :
Nano Photonics Program, Inst. of Microelectron., A*STAR (Agency for Sci., Technol. & Res.), Singapore, Singapore
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 248 nm 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.
Keywords :
CMOS integrated circuits; finite difference time-domain analysis; optical fibre couplers; silicon-on-insulator; fibre coupling tolerance modelling; finite difference time domain; modified overlap integral method; silicon on insulator; standard CMOS technology; uniform grating coupler;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.2697
