Intermodal Nonlinear Effects in Multimode Fibers

Friday, July 24, 2015 -
2:30pm to 4:00pm
Mina Esmaeelpour
Speaker's Institution: 
Lehigh University

Mina Esmaeelpour

PhD Candidate

Physics Department

Lehigh University


 Inter-modal nonlinear effects such as four-wave mixing in few-mode fibers are of great interest because of their implications on the capacity of space-division multiplexed systems in addition to applications in wavelength conversion and parametric amplifications. Partially-degenerate Intermodal Four-Wave Mixing in few-mode fibers was first introduced more than three decades ago to take advantage of the different group velocity dispersions of the various spatial modes so as to achieve phase matching. In non-degenerate Intermodal Four-Wave Mixing, additional phase-matching conditions can be achieved by having different configurations for pumps and probe. Using the fact that different modes have different group velocities and propagation constants allows achieving intermodal phase matching through a suitable choice of the wavelengths for the different modes. Stimulated Raman Scattering (SRS) is another important and complementary nonlinear effect in few mode fibers because it allows in-line distributed amplification in space-division multiplexing. An important challenge for these amplifiers is providing equalized gain across all modes of a multimode fiber. 


This talk will introduce the subject of intermodal nonlinear effects in multimode fibers for space division multiplexing, and discuss the technical challenges that still have to be met for the implementation of space-division multiplexing in fiber optic networks. 





Mina Esmaeelpour studied at the University of Tabriz in Tabriz, Iran from which she received a B.S. and a M.S. degree in Physics (solid state Physics) in 2007 and 2010, respectively. Since August 2010, she has been a Ph.D. student at Lehigh University, Bethlehem, PA under the supervision of Prof. Jean Toulouse. She has also been at Bell Laboratories, Alcatel-Lucent, Holmdel, New Jersey as a summer intern for summers 2011, 2013 and 2014 and has worked under the supervision of Dr. Roland Ryf and Dr. René-Jean Essiambre. Some of her research areas and interests are Photonic crystal waveguides and fibers, multicore fiber supermode propagation and intermodal nonlinearities in few-mode and multimode fibers. She is the founder of the Lehigh University OSA student chapter as well as the Lehigh University Optics and Photonics Society. Currently, she is a PhD candidate at Lehigh University, Department of Physics.