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Nonlinear pulse propagation in long-period fiber gratings: theory and experiment

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4 Author(s)
Kutz, J.N. ; Program in Appl. & Comput. Math., Princeton Univ., NJ, USA ; Eggleton, B.J. ; Stark, J.B. ; Slusher, R.E.

In this paper, we discuss theoretical and experimental aspects of nonlinear pulse propagation in long-period fiber gratings. We derive nonlinear coupled mode equations for co-propagating core and cladding modes in a long-period fiber grating and show that the intensity dependent index can be used to tune the mode coupling, thereby creating a mechanism for pulseshaping and all-optical switching. Extensive numerical simulations, which describe the nonlinear pulse dynamics, are compared with experiments. We discuss the application of these nonlinear effects to signal processing in all-optical fiber communications

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:3 ,  Issue: 5 )