Silicon graphene waveguide tunable broadband microwave photonics phase shifter
arXiv:1312.7141 · doi:10.1364/OE.22.008094
Abstract
We propose the use of silicon graphene waveguides to implement a tunable broadband microwave photonics phase shifte based on integrated ring cavities. Numerical computation results show the feasibility for broadband operation over 40 GHz bandwidth and full 360 degree radiofrequency phase-shift with a modest voltage excursion of 0.12 volt.