Abstract
An improved version of the generalized nonlinear Schrödinger equation is derived, which takes into
account the correct dispersion of the transverse field distribution. The new improved version of the generalized
nonlinear Schrödinger equation is verified to give the same results as the standard implementation for a simple
single mode soliton propagation example. As opposed to the standard implementation, the new implementation is able to
reproduce pulsed four wave mixing observed experimentally in a higher order mode fiber.
© 2013 IEEE
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