Reply to Comment on “Design of a broadband highly dispersive pure silica photonic crystal fiber”

A reply to the Comment byMortensen et al. [Appl. Opt. 47, xxxx–xxxx (2007)] on our previous paper on on our earlier paper published in [Appl. Opt. 46, 3263–3268 (2007)is presented. In the theoretical study of a highly dispersive dual concentric-core pure silica photonic crystal fiber, we presented a design wherein the high value of the dispersion coefficient was due to coupling of modes between two asymmetric cores at a phase-matched wavelength of 1:55 μm. In the condition in which both the supermodes are excited si-multaneously, the dispersion effects of the two modes do not cancel each other, but the final dispersion coefficient depends on the input launching condition. We also predict the feasibility of manufacturing low-loss pure silica dual concentric-core photonic crystal fibers in future with advancement in the current fabrication techniques. © 2008 Optical Society of America OCIS codes: 060.2280. The paper presented is a theoretical conception of a design with a very high value of dispersion (−9500 ps=nm=km) and a full width at half-maximum (FWHM) of 55nm [1]. Such a highly dispersive, pure silica photonic crystal fiber (PCF) has great potentia