Improvement of a numerical method for modeling a semiconductor laser

The differential equations for modeling distributed feedback semiconductor lasers are difficult or impossible to solve by hand, so we resort to numerical approximations that can be run by a computer. Naturally, these approximations introduce some error. In the case at hand, that error takes the form of random noise, and when left unchecked, it can mask our understanding of the laser\u27s true behavior. Our improvements have successfully mitigated this error and revealed the true dynamics of the laser