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2017, Volume 18, Issue 9

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Frontiers of Information Technology & Electronic Engineering >> 2017, Volume 18, Issue 9 doi: 10.1631/FITEE.1601720

On-chip optical interconnect using visible light

. Peter Grünberg Research Center,Nanjing University of Posts and Telecommunications, Nanjing 210003,China.. School of Computer Engineering, NanjingInstitute of Technology, Nanjing 211167, China

Available online: 2018-01-18
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Abstract

We propose and fabricate a monolithic optical interconnect ona GaN-on-silicon platform using a wafer-level technique. Because theInGaN/GaN multiple-quantum-well diodes (MQWDs) can achieve light emissionand detection simultaneously, the emitter and collector sharing identicalMQW structure are produced using the same process. Suspended waveguidesinterconnect the emitter with the collector to form in-plane lightcoupling. Monolithic optical interconnect chip integrates the emitter,waveguide, base, and collector into a multi-component system witha common base. Output states superposition and 1×2 in-planelight communication are experimentally demonstrated. The proposedmonolithic optical interconnect opens a promising way toward the diverseapplications from in-plane visible light communication to light-inducedartificial synaptic devices, intelligent display, on-chip imaging,and optical sensing.

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