Improving Dispersion Compensation Of Photonic Crystal Fibers Through Air Hole Core Insertion

The analysis of the insertion of one air hole centered in the core region of a Dispersion Compensating Photonic Crystal Fiber (DCPCF) was done by numerical modeling via Finite Element Method (FEM). A case study of this kind of optical fiber was evaluated. Based on this study, it was observed that the simple insertion of the air hole in the central region of the DCPCF and the variation of its diameter can produce significant improvements in fibers designed for this purpose. © 2011 IEEE.121124Poli, F., Cucinotta, A., Fuochi, M., Selleri, S., Vincetti, L., Characterization of microstructured optical fibers for wideband dispersion compensation (2003) J. Opt. Soc. Am. A, 20, pp. 1958-1962Huttunen, A., Törmä, P., Optimization of dual-core and microstructure fiber geometries for dispersion compensation and large mode area (2005) Opt. Express, 13, pp. 627-635Zhao, X., Zhou, G., Li, S., Liu, Z., Wei, D., Hou, Z., Hou, L., Photonic crystal fiber for dispersion compensation (2008) Appl. Opt., 47, pp. 5190-5196Da Silva, J.P., Rodríguez-Esquerre, V.F., Bezerra, D.S., Iguatemi, F.E., Hernández-Figueroa, H.E., Ge-Doped Defect-Core Microstructured Fiber Design by Genetic Algorithm for Residual Dispersion Compensation (2010) IEEE Photonics Technology Letters, 22, pp. 1337-1339Mores Jr., J.A., Malheiros-Silveira, G.N., Fragnito, H.L., Hernández- Figueroa, H.E., Efficient calculation of higher-order optical waveguide dispersion (2010) Opt. Express, 18, pp. 19522-19531Koshiba, M., Tsuji, Y., Curvilinear Hybrid Edge/Nodal Elements with Triangular Shape for Guided-Wave Problems (2000) J. Lightwave Technol., 18, p. 737Ramaswami, R., Sivarajan, K.N., (2002) Optical Networks: A Practical Perspective, , Academic PressCanning, J., Buckley, E., Lyytikainen, K., Multiple source generation using air-structured optical waveguides for optical field shaping and transformation within and beyond the waveguide (2003) Opt. Express, 11, pp. 347-358Wang, J., Jiang, C., Hu, W., Gao, M., Properties of index-guided PCF with air-core (2007) Optics & Laser Technology, 39 (2), pp. 317-321. , MarchSaitoh, K., Florous, N., Koshiba, M., Ultraflattened chromatic dispersion controllability using a defected-core photonic crystal fiber with low confinement losses (2005) Opt. Express, 13, pp. 8365-8371Wu, M., Huang, D., Liu, H., Tong, W., Broadband dispersion compensating fiber using index-guiding photonic crystal fiber with defected core (2008) Chin. Opt. Lett., 6, pp. 22-24Nguyen, H.C., Kuhlmey, B.T., Steel, M.J., Smith, C.L., Mägi, E.C., McPhedran, R.C., Eggleton, B.J., Leakage of the fundamental mode in photonic crystal fiber tapers (2005) Opt. Lett., 30, pp. 1123-112