Multimode propagation in silicon core optical fibers is investigated via numerical modeling of the coupled mode equations. The simulations consider spectral evolution in two fibers with different micrometer-sized cores that have experimentally been shown to exhibit nonlinear broadening. The results indicate that most of the coupled power is propagated in the fundamental mode of each fiber, with a small contribution from the higher-order modes affecting the spectral shape but not the width of the broadening.
© 2012 Optical Society of America
Original Manuscript: July 2, 2012
Manuscript Accepted: July 15, 2012
Published: August 6, 2012
Anna C. Peacock, Priyanth Mehta, Peter Horak, and Noel Healy, "Nonlinear pulse dynamics in multimode silicon core optical fibers," Opt. Lett. 37, 3351-3353 (2012)