Polarization splitter based on a square-lattice photonic-crystal fiber.
A three-core polarization splitter based on a square-lattice photonic-crystal fiber is presented. The component separates the input field into two orthogonally polarized beams that are coupled to the horizontal and vertical output ports. The splitter has been designed through modal and beam propagation analysis by employing high-performance codes based on the finite-element method. Results obtained for a device length of 20 mm show extinction ratios as low as -23 dB with bandwidths as great as 90 nm.
Rosa
Lorenzo
L
University of Parma, Parco Area delle Scienze 181/A, 1-43100 Parma, Italy. lrosa@ieee.org
Poli
Federica
F
Foroni
Matteo
M
Cucinotta
Annamaria
A
Selleri
Stefano
S