Title :
Efficient Iterative Time-Domain Beam Propagation Methods for Ultra Short Pulse Propagation: Analysis and Assessment
Author :
Masoudi, Husain M. ; Akond, Mohammad S.
Author_Institution :
Dept. of Electr. Eng., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia
Abstract :
The time-domain beam propagation method (TD-BPM) has been implemented and analyzed using several iterative numerical techniques to model the propagation of ultra short pulses in optical structures. The methods depend on one-way non-paraxial time domain propagation that use Pade approximant formulation. Several numerical tests showed that the iterative TD-BPM techniques are very stable and converge using few iterations. From accuracy assessment compared to the FDTD, it has been observed that the longitudinal and the temporal steps sizes can be a number of orders of magnitude larger than the FDTD step sizes with little percentage difference. Computer performance analysis showed the TD-BPM is well suited for long dielectric structures interaction of short and ultra short pulse propagation.
Keywords :
approximation theory; finite difference time-domain analysis; high-speed optical techniques; iterative methods; light propagation; physics computing; Pade approximant formulation; iterative time domain beam propagation methods; long dielectric structures; one way nonparaxial time domain propagation; optical structures; ultra short pulse propagation; Accuracy; Approximation methods; Convergence; Finite difference methods; Optical beams; Optical pulses; Time domain analysis; Pade approximant; beam propagation method; finite-difference analysis; finite-difference time domain; modeling; numerical analysis; optical waveguide theory; ultra-short pulse propagation;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2011.2159703
