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- Title
A compact plasmonic MOS-based 2×2 electro-optic switch.
- Authors
Ye, Chenran; Liu, Ke; Soref, Richard A.; Sorger, Volker J.
- Abstract
We report on a three-waveguide electro-optic switch for compact photonic integrated circuits and data routing applications. The device features a plasmonic metal-oxide-semiconductor (MOS) mode for enhanced light-matter-interactions. The switching mechanism originates from a capacitor-like design where the refractive index of the active medium, indium-tin-oxide, is altered via shifting the plasma frequency due to carrier accumulation inside the waveguide-based MOS structure. This light manipulation mechanism controls the transmission direction of transverse magnetic polarized light into either a CROSS or BAR waveguide port. The extinction ratio of 18 (7) dB for the CROSS (BAR) state, respectively, is achieved via a gating voltage bias. The ultrafast broadband fJ/bit device allows for seamless integration with silicon-on-insulator platforms for low-cost manufacturing.
- Subjects
OPTICAL switching; PLASMONICS; ELECTROOPTICAL devices; EQUIPMENT &; supplies
- Publication
Nanophotonics (21928606), 2015, Vol 4, Issue 3, p261
- ISSN
2192-8606
- Publication type
Article
- DOI
10.1515/nanoph-2015-0010