Silicon graphene waveguide tunable broadband microwave photonics phase shifter

We propose the use of silicon graphene waveguides to implement a tunable broadband microwave photonics phase shifter based on integrated ring cavities. Numerical computation results show the feasibility for broadband operation over 40 GHz bandwidth and full 360 degrees radiofrequency phase-shift with a modest voltage excursion of 0.12 volt. (C) 2014 Optical Society of AmericaThe authors wish to acknowledge the financial support given by the Research Excellency Award Program GVA PROMETEO 2013/012.Capmany Francoy, J.; Doménech Gómez, JD.; Muñoz Muñoz, P. (2014). Silicon graphene waveguide tunable broadband microwave photonics phase shifter. Optics Express. 22(7):8094-8100. doi:10.1364/OE.22.008094S8094810022