A High-Speed Fully-Integrated VLC Receiver With Large-Area Photodetector

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-04-08 DOI:10.1109/JPHOT.2025.3558931

Sheng Xie;Xiaoxia Hu;Jia Cong

引用次数: 0

Abstract

This paper presents a fully integrated visible light communication (VLC) receiver with a large photo-sensitive area optimized for high-speed data transmission. The photodetector (PD) featuring a size of 410 μm × 410 μm is implemented using a P

$^{+}$

/N-well/P-sub structure and was segmented into multiple P

$^{+}$

/N-well detection cells to enhance the response speed while maintaining high sensitivity. To further extend the overall bandwidth of optical receiver, a continuous-time linear equalizer (CTLE) with negative capacitance technique is incorporated, effectively compensating for the high-frequency gain loss. The proposed VLC receiver was fabricated in CSMC 0.25 μm CMOS technology, and its performance is verified in a VLC test system. The experimental results indicate that this receiver can achieve a data rate of 980 Mbit/s at a bit error rate (BER) of 3.8 × 10

$^{-3}$

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带大面积光电探测器的高速全集成VLC接收机

本文介绍了一种具有大光敏面积的全集成可见光通信（VLC）接收机，该接收机针对高速数据传输进行了优化。该光电探测器（PD）的尺寸为410 μm × 410 μm，采用P$^{+}$/N-well/P-sub结构，并被分割成多个P$^{+}$/N-well检测单元，以提高响应速度，同时保持高灵敏度。为了进一步扩大光接收机的总带宽，采用了负电容技术的连续时间线性均衡器（CTLE），有效地补偿了高频增益损失。采用CSMC 0.25 μm CMOS工艺制作了VLC接收机，并在VLC测试系统中对其性能进行了验证。实验结果表明，该接收机可以在3.8 × 10$^{-3}$的误码率下实现980 Mbit/s的数据速率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.