Title :
Time Domain FD-BPM for Calculating Pulse Propagation Properties of MMI Device with Photonic Crystal Structure
Author :
Nihei, Hiroshige ; Chen, Chun-Ping ; Anada, Tetsuo ; Ma, Zhewang
Author_Institution :
Dept. of Electr. Eng. & High-Tech Res. Center, Kanagawa Univ., Yokohama
Abstract :
A time domain beam propagation method (TD-BPM) based on the finite-difference alternating direction implicit method is described for the numerical analysis of reflections in multimode interference circuits with photonic crystal structures. It is shown that TD-BPM using the Pade (1, 1) approximation is less sensitive to the choice of spatial step and allows a larger time step size to be used compared to the FD-TD method. Furthermore, the validity and accuracy of the TD-BPM based on the ADI method will be discussed through numerical examples in MMI circuits with photonic crystal structures.
Keywords :
approximation theory; finite difference time-domain analysis; integrated optics; light interference; optical beam splitters; optical materials; optical waveguides; photonic crystals; ADI method; FD-TD method comparison; MMI circuits; MMI device; MMI power splitter; Pade approximation; TD-BPM; finite-difference alternating direction implicit method; multimode interference circuits; multimode interference waveguide structure; numerical analysis; optical waveguide; photonic crystal structure; pulse propagation properties; time domain FD-BPM; time domain beam propagation method; Acoustic beams; Acoustic propagation; Equations; Finite difference methods; Optical propagation; Optical pulses; Optical sensors; Optical waveguides; Photonic crystals; Time domain analysis; Beam propagation method; Finite-difference; Optical waveguide; Pulse propagation.; Time domain;
Conference_Titel :
Microwave Conference, 2008 China-Japan Joint
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3821-1
DOI :
10.1109/CJMW.2008.4772364
