Ultrafast chaotic switching and monitoring using plasmonic add-drop multiplexer

• Main Authors: Youplao, Phichai, Pornsuwancharoen, Nithiroth, Udomariyasap, Pongputhai, Amiri, Iraj S., Punthawanunt, Suphanchai, Ali, Jalil, Singh, Ghanshyam, Poznanski, Roman R., Yupapin, Preecha, Grattan, Kenneth T.V.
• Format: Article
• Published: John Wiley & Sons, Inc. 2018
• Subjects: Q Science (General)
• Online Access: http://eprints.utm.my/id/eprint/85897/; http://dx.doi.org/10.1002/mop.31486
• Institution: Universiti Teknologi Malaysia

In this paper, we propose a plasmonic circuit based on optical add-drop multiplexer. A stack of silicon–graphene–gold layers is used at optical add-drop filter ends. The light input from a laser source at the silicon base of the stack enables ultrafast electrical switching by rapid light-electron energy conversion. It allows feedback signals monitoring by the output mobility visibility, which is useful for system control. Certain results show ultra-fast switching time of ~5.0 fs at a stable power of 3 mW. The results further demonstrate great avenues for the secured communication channel-based on the plasmonic electronic circuit.