Doménech, D.Chamorro Posada, P.Fraile Pelaez, F.J.Erro Betrán, María JoséTainta Ausejo, SantiagoMuriel, M. A.Baños, R.Bolten, J.Kleinjans, H.2017-07-212017-07-212017D. Doménech et al., "Characterization of Microring Filters for Differential Group Delay Applications," in Journal of Lightwave Technology, vol. 35, no. 14, pp. 2943-2947, July15, 15 2017. doi: 10.1109/JLT.2017.27074780733-8724 (Print)1558-2213 (Electronic)10.1109/JLT.2017.2707478https://academica-e.unavarra.es/handle/2454/24675The longitudinal offset technique permits to improve the accuracy of the coupling coefficients of integrated directional couplers and provides designs that can be easily implemented with current fabrication tolerances. In this work, we address the additional degree of freedom offered by this technology in order to tailor the differential group delay in coupled-resonator optical filters. We present the characterization of several devices exploiting this feature and we discuss their potential applicationsapplication/pdfeng© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Integrated opticsLongitudinal offset couplersOptical filtersMicroring resonatorsMicrowave photonicsArtículo / ArtikuluaAcceso abierto / Sarbide irekiainfo:eu-repo/semantics/openAccess