Title :
Time domain optical response of electro-optic modulator using FDTD
Author :
Tomeh, M.M. ; Goasguen, S. ; El-Ghazaly, S.M.
Author_Institution :
Micro Photonix Integration Corp., Phoenix, AZ, USA
Abstract :
We perform a time domain analysis of a LiNbO/sub 3/ electro-optic modulator using the finite difference time domain (FDTD) technique. This allows us to obtain the optical modulation and the time domain optical response of an electro-optic modulator. The electromagnetic fields computed by FDTD are coupled to standard electro-optic relations that characterize electo-optic interactions inside the embedded Ti diffused LiNbO/sub 3/ optical waveguides. The change in index of refraction inside these optical waveguides is determined in time, allowing for the simulation of optical intensity modulation. This novel approach to LiNbO/sub 3/ electrooptic modulators using a coupled FDTD technique allows for previously unattainable investigations into device operating bandwidth and data transmission speed.
Keywords :
coplanar waveguide components; electro-optical modulation; finite difference time-domain analysis; integrated optics; lithium compounds; optical waveguide components; refractive index; FDTD; LiNbO/sub 3/; data transmission speed; device operating bandwidth; electo-optic interactions; electro-optic modulator; electromagnetic fields; index of refraction; optical intensity modulation; optical modulation; standard electro-optic relations; time domain optical response; Electromagnetic fields; Electromagnetic waveguides; Electrooptic modulators; Embedded computing; Finite difference methods; Optical computing; Optical modulation; Optical refraction; Optical waveguides; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967072
