| Authors: | Joan Lloret, G. Morthier, Francisco Ramos, Salvador Sales, D. Van Thourhout, T. Spuesens, Nicolas Olivier, Jean-Marc Fedeli, Jose Capmany | | Title: | Broadband microwave photonic fully tunable filter using a single heterogeneously integrated III-V/SOI-microdisk-based phase shifter | | Format: | International Journal | | Publication date: | 4/2012 | | Journal/Conference/Book: | Optics Express
| | Volume(Issue): | p.10796-10806 | | DOI: | 10.1364/oe.20.010796 | | Citations: | 22 (Dimensions.ai - last update: 21/12/2025)
13 (OpenCitations - last update: 3/5/2025)
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Abstract
A broadband microwave photonic phase shifter based on a single III-V microdisk resonator heterogeneously integrated on and coupled to a nanophotonic silicon-on-insulator waveguide is reported. The phase shift
tunability is accomplished by modifying the effective index through carrier injection. A comprehensive semi-analytical model aiming at predicting its
behavior is formulated and confirmed by measurements. Quasi-linear and continuously tunable 2ð phase shifts at radiofrequencies greater than 18 GHz are experimentally demonstrated. The phase shifter performance is also evaluated when used as a key element in tunable filtering schemes.
Distortion-free and wideband filtering responses with a tuning range of ~100% over the free spectral range are obtained. Related Research Topics
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