Abstract
We have developed and tested a parallelizable, bidirectional (PB) numerical
algorithm for the simulation of propagating laser pulse trains and oppositely
propagating laser beams or pulse trains. The PB approach replaces iterative
simulation of counterpropagating Raman amplification, stimulated Brillouin
scattering, reflections and Rayleigh scattering. Initial tests have shown
that at least 98% of the computational core of a finite-difference time-domain
test program that uses the new PB algorithm is parallelizable, implying a
factor of 7 speed-up with eight processors (for example). This result is important
for the design of optical transmission systems because the PB approach increases
size of a system that can be designed and simulated in a given time.
© 2009 IEEE
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