%0 Journal Article %A Koohi-Kamali, Farshid %A Ebnali-Heidari, Majid %A Moravvej-Farshi, Mohammad Kazem %T Designing a dual-core photonic crystal fiber coupler by means of microfluidic infiltration %J International Journal of Optics and Photonics %V 6 %N 2 %U http://ijop.ir/article-1-116-en.html %R %D 2012 %K optical coupler, dispersion engineering, dual-core photonic crystal fiber, dual-core, optofluidic, finite element method, coupled generalized nonlinear Schrödinger equations, %X We report the results of our study on the role of microfluidic infiltration technique in improving the coupling characteristics of dual-core photonic crystal fiber (PCF) couplers. Using the finite element method (FEM), we evaluate the effective mode area, dispersion and coupling parameters of an infiltrated dual-core PCF. We use these parameters to design a compact and reconfigurable coupler by solving a set of coupled generalized nonlinear Schrödinger equations. This approach allows one to obtain wavelength-flattened dispersion characteristics with bandwidth of   in the ITU region, and large walk-off length simply by choosing a suitable infiltrated refractive index. We also demonstrate that under certain conditions one can observe a pulse break-up effect to generate pulse trains with high repetition rate. %> http://ijop.ir/article-1-116-en.pdf %P 83-96 %& 83 %! %9 Research %L A-10-29-2 %+ Tarbiat Modares University %G eng %@ 1735-8590 %[ 2012