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15 February 2012 Anti-symmetric hybrid photonic crystal fibers with enhanced filtering and bending properties
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A novel design of Yb-doped double-cladding hybrid photonic crystal fibers, with three rows of high-index inclusions on each side of the core, has been numerically analyzed with a full-vector modal solver based on the finite element method. Simulation results have demonstrated that a stronger filtering effect and a higher bending tolerance can be obtained with an increased number of high-index resonators. Moreover, the unique bending properties of hybrid fibers with anti-symmetric design have been investigated and explained through the comparison with the ones of hybrid symmetric fibers, with high-index inclusions of the same dimension on both sides of the core.
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Enrico Coscelli, Federica Poli, Sidsel Petersen, Thomas T. Alkeskjold, Annamaria Cucinotta, Stefano Selleri, Lasse Leick, and Jes Broeng "Anti-symmetric hybrid photonic crystal fibers with enhanced filtering and bending properties", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82373L (15 February 2012);

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