# Graphene-Based Integrated Photonics For Next-Generation Datacom And Telecom

## TL;DR

Graphene-based integrated photonics offers promising advantages for next-generation datacom and telecom applications, including ultrahigh bandwidth density and low power consumption, by leveraging graphene's unique optoelectronic properties.

## Contribution

This paper presents a comprehensive vision, review, and roadmap for graphene-based integrated photonics, highlighting its potential to revolutionize datacom and telecom technologies.

## Key findings

- Graphene enables electro-absorption and electro-refraction modulation with significant index change.
- Graphene-based devices can eliminate thermal detuning dissipation in microresonators.
- Potential for ultrahigh spatial bandwidth density and low power consumption in optical communications.

## Abstract

Graphene is an ideal material for optoelectronic applications. Its photonic properties give several advantages and complementarities over Si photonics. For example, graphene enables both electro-absorption and electro-refraction modulation with an electro-optical index change exceeding 10$^{-3}$. It can be used for optical add-drop multiplexing with voltage control, eliminating the current dissipation used for the thermal detuning of microresonators, and for thermoelectric-based ultrafast optical detectors that generate a voltage without transimpedance amplifiers. Here, we present our vision for grapheme-based integrated photonics. We review graphene-based transceivers and compare them with existing technologies. Strategies for improving power consumption, manufacturability and wafer-scale integration are addressed. We outline a roadmap of the technological requirements to meet the demands of the datacom and telecom markets. We show that graphene based integrated photonics could enable ultrahigh spatial bandwidth density , low power consumption for board connectivity and connectivity between data centres, access networks and metropolitan, core, regional and long-haul optical communications.

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Source: https://tomesphere.com/paper/1906.00353