Graphene Embedded Modulator with Extremely Small Footprint and High Modulation Efficiency. (28th May 2014)

• Record Type: Journal Article
• Authors: Hao, Ran; Jin, Jia-Min
• Other Names: Lupu Anatole Academic Editor.
• Is Part Of: Journal of photonics. Volume 2014(2014)
• Publication Date: 2014-05-28
• Subjects: Photonics -- Periodicals; Photonics; Periodicals; 621.365
• DOI: 10.1155/2014/309350
• Languages: English
• ISSNs: 2356-7562

Abstract

Abstract : By embedding graphene sheet in the silicon waveguide, the overall effective mode index displays unexpected symmetry and the electrorefraction effect has been significantly enhanced near the epsilon-near-zero point. An eight-layer graphene embedded Mach-Zehnder Modulator has been theoretically demonstrated with the advantage of ultracompact footprint (4 × 2 μ m 2 ), high modulation efficiency (1.316 V · μ m), ultrafast modulation speed, and large extinction ratio. Our results may promote various on-chip active components, boosting the utilization of graphene in optical applications.