Synchronous uplink and downlink optical lighting communication single-chip device, manufacturing method and application

Abstract

The invention discloses a synchronous uplink and downlink optical lighting communication single-chip device and a manufacturing method. The structure of the chip includes a substrate, a modulation doped semiconductor composite layer, an ultra-thin dielectric layer, a transparent conductive layer, a first electrode and a second electrode; The modulation doped semiconductor composite layer includes a doped GaN layer and a GaN / InGaN multiple quantum well on the doped GaN layer; the device has a white light emission channel and an invisible light detection channel, and the white light emission channel has illumination and downlink signal modulation Transmitting function, the invisible light detection channel has the function of receiving the uplink adjustment signal, and the two channels can carry out independent parallel transmission of light on a single chip, and realize the reception of uplink electrical signals and the transmission of downlink electrical signals. The invention also provides a full-duplex visible light wireless communication system. The invention realizes the single-chip integration of the Li-Fi function, and has great application value.

Description

technical field [0001] The invention relates to the field of communication, the field of semiconductor optoelectronic devices and their manufacture, and in particular to a single-chip uplink and downlink synchronous communication optoelectronic device with high modulation bandwidth capable of light detection while emitting light and a manufacturing method thereof. Background technique [0002] With the development of modern science and technology, human beings have entered the information age. Ubiquitous communication networks and communication terminals make information interaction more convenient and efficient, and people's demands for an information society are also increasing. Among them, people's requirements for the amount of data acquisition, that is, the rate of data traffic acquisition, are particularly obvious. At present, the mainstream communication application technology has begun to develop from the 4th generation mobile networks (4G) to the 5th generation mobi...

AI Technical Summary

Problems solved by technology

[0011] In view of this, the present invention aims to solve the problem of discrete optical communication devices and low chip integration in the VLC system, and provides a single-chip device that can simultaneously perform white light illumination and uplink and downlink bidirectional and dual-channel optical communication functions. The single-chip integration that realizes the Lifi function will become a new and simple device structure for future white light communication, and at the same time provide a manufacturing method and application of the single-chip optoelectronic device

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