摘要
水下无线光通信(UWOC)依赖高带宽、低延迟特性,广泛应用于海洋监测与勘探。蓝绿光(450~570 nm)因在水中吸收少、穿透强,成为其核心载波。随着通信需求提升,发展高速、高灵敏的蓝绿光探测器日趋重要。文章系统综述了蓝绿光通信探测器的研究进展,基于蓝绿光高效吸收的半导体材料种类和相应的高速探测器结构,将其分为三大类:基于能带调控的低维材料器件、基于表面场调控和横向电场的传统Si材料探测器和基于组分调节的GaN系材料探测器。然后,深入分析三类探测器的工作原理、发展现状、性能优势和核心挑战。最后,探讨了蓝绿光探测器在提升吸收效率、响应速度、灵敏度、稳定性及集成度方面面临的挑战,并展望了未来发展方向。
Underwater wireless optical communication(UWOC)is crucial in marine monitoring and resource exploration owing to its advantages,including high bandwidth and low latency.Blue-green light(450~570 nm)is the preferred carrier signal due to its minimal absorption attenuation coefficient and superior penetration in water.With the escalating demand for communication data volume and transmission distance,the development of high-speed and high-sensitivity blue-green light communication detectors has become essential.This review summarizes recent global advancements in blue-green light communication detectors.Based on the semiconductor materials that absorb blue-green light and the high-speed detector structures,these detectors can be classified into three categories:low-dimensional material devices utilizing bandgap engineering,traditional Si-based detectors leveraging surface field modulation and lateral electric fields,and GaN-series material detectors through compositional tuning.A critical analysis of the operational principles,development status,,advantages,and limitations of each category is conducted.Finally,the challenges of the blue-green photodetectors in enhancing absorption efficiency,response speed,sensitivity,stability,and integration are discussed,highlighting prospects for next-generation high-performance detectors in underwater communication systems.
作者
李亚明
董昱森
杜晨曦
李嘉欣
李冲
LI Yaming;DONG Yusen;DU Chenxi;LI Jiaxin;LI Chong(The 54th Research Institute of China Electronics Technology Group Corporation,Beijing 100041,CHN;Faculty of Information Science and Technology,Beijing University of Technology,Beijing 100124,CHN)
出处
《半导体光电》
北大核心
2025年第4期587-596,共10页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(62375008)。
