Title :
Time-domain finite-difference beam propagation method
Author :
Masoudi, Husain M. ; AlSunaidi, Muhammad A. ; Arnold, John M.
Author_Institution :
Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia
Abstract :
A new technique to model the behavior of pulsed optical beams in waveguides is proposed and analyzed. The technique is an extension of the traditional continuous-wave beam propagation method (BPNI) to include time dependence, therefore called the time-domain BPM (TD-BPM). The method was tested using different waveguide examples and it is concluded that the technique is simple and accurate. Compared with the finite-difference TD method, the new TD-BPM is more efficient in terms of computer memory and execution time especially for large optical devices.
Keywords :
finite difference time-domain analysis; optical waveguide theory; computer memory; continuous-wave beam propagation method; execution time; finite-difference TD method; large optical devices; optical waveguide examples; pulsed optical beams; time dependence; time-domain BPM; time-domain finite-difference beam propagation method; Finite difference methods; Nonlinear optics; Optical beams; Optical devices; Optical propagation; Optical pulse shaping; Optical pulses; Optical waveguides; Partial differential equations; Time domain analysis;
Journal_Title :
Photonics Technology Letters, IEEE
