面向可见光通信的硅基InGaN/GaN多量子阱多口分路器光子集成芯片

为研究面向可见光通信的多功能光子集成芯片，实现可见光信号发射、探测、传输和功率分配的一体化的复合功能，该文提出一种基于硅基InGaN/GaN多量子阱材料的微型发光二极管(LED)多口分路器结构的光子集成芯片，对集成芯片进行了形貌、光电特性和可见光通信测试等多方面表征，实现了对可见光信号的有效传输和不同比例的多口功率分路，并对分路器不同端口的出射光强进行量化处理，最后，利用信号发生器在微型LED光源发射端加载300 kHz的矩形波电信号，收集分路器末端发射的调制可见光信号，输入/接收信号的波形变化趋势一致，说明该光子集成芯片可实现有效的可见光通信。该研究的主要目的是尝试性将可见光波段的光源和光电探测器集成在氮化物晶圆上，为可见光通信的全光网络的可见光信号片上集成式处理提供新的研究思路和方案，为发展面向可见光通信网络需求的复合功能光子集成芯片终端提供了更多可能性。

Silicon-based InGaN/GaN Multi-quantum Wells Multi-port Splitter Photonic Integrated Chip for Visible Light Communication

In order to study the multi-functional photon integrated chip for visible light communication and realize the integrated function of visible light signal emission, detection, transmission and power distribution, a miniature Light Emitting Diode(LED) with splitter structure based on silicon-based InGaN/GaN multiple quantum well material is proposed in this paper. The photon integrated chip is characterized in many aspects, such as morphology, optoelectronic characteristics and visible light communication test. The effective transmission of visible light signal and different proportion of multi-port power shunt are realized, and the output light intensity of different ports of the splitter is quantified. Finally, the rectangular wave signal of 300 kHz is loaded at the emitter end of the miniature LED light source by the signal generator, and the modulated visible light signal emitted at the end of the splitter is collected. The waveform change trend of the input / receive signal is the same. It shows that the photonic integrated chip can achieve effective visible light communication. The main purpose of this study is to try to integrate visible light sources and photodetectors on nitride wafers, so as to provide new research ideas and schemes for on-chip integrated processing of visible light signals in all-optical networks of visible light communications. It provides more possibilities for the development of multi-function photon integrated chip terminals for visible light communication networks.