26 February 2013 Nonlinear spatial mode imaging of hybrid photonic crystal fibers
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Degenerate spontaneous four wave mixing is studied for the rst time in a large mode area hybrid photonic crystal ber, where light con nement is achieved by combined index- and bandgap guiding. Four wave mixing products are generated on the edges of the bandgaps, which is veri ed by numerical and experimental results. Since the core mode is in resonance with cladding modes near the bandedges an unconventional measurement technique is used, in this work named nonlinear spatial mode imaging.
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S. R. Petersen, S. R. Petersen, T. T. Alkeskjold, T. T. Alkeskjold, M. Laurila, M. Laurila, T. V. Andersen, T. V. Andersen, J. Lægsgaard, J. Lægsgaard, } "Nonlinear spatial mode imaging of hybrid photonic crystal fibers", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010M (26 February 2013); doi: 10.1117/12.2003570; https://doi.org/10.1117/12.2003570

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