Four-dimensional direct detection receiver enabling Jones-space field recovery with phase and polarization diversity

作     者：QI WU YIXIAO ZHU XUEYANG LI HEXUN JIANG CHEN CHENG MENGFAN FU YIKUN ZHANG QUNBI ZHUGE ZHAOHUI LI WEISHENG HU QI WU;YIXIAO ZHU;XUEYANG LI;HEXUN JIANG;CHEN CHENG;MENGFAN FU;YIKUN ZHANG;QUNBI ZHUGE;ZHAOHUI LI;WEISHENG HU

作者机构：Peng Cheng LaboratoryShenzhen 518055China State Key Laboratory of Advanced Communication Systems and NetworksDepartment of Electronic EngineeringShanghai Jiao Tong UniversityShanghai 200240China School of Electronics and Information Technology and Guangdong Provincial Key Laboratory of Optoelectronic Information Processing Chips and SystemsSun Yat-sen UniversityGuangzhou 510006China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2024年第12卷第3期

页      面：399-410页

核心收录：

学科分类：08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2020YFB1806401) National Natural Science Foundation of China(62001287,62201308,62271305) 

主　　题：polarization receiver phase 

摘      要：Data centers,the engines of the global Internet,rely on powerful high-speed optical *** optical fiber communication,classic direct detection captures only the intensity of the optical field,while the coherent detection counterpart utilizes both phase and polarization diversities at the expense of requiring a narrow-linewidth and high-stability local oscillator(LO).Herein,we propose and demonstrate a four-dimensional Jones-space optical field recovery(4-D JSFR)scheme without an *** polarization-diverse full-field receiver structure captures information encoded in the intensity and phase of both polarizations,which can be subsequently extracted *** our knowledge,our proposed receiver achieves the highest electrical spectral efficiency among existing direct detection systems and potentially provides similar electrical spectral efficiency as standard intradyne coherent detection *** fully recovered optical field extends the transmission distance beyond the limitations imposed by fiber chromatic ***,the LO-free advantage makes 4-D JSFR suitable for photonic integration,offering a spectrally efficient and cost-effective solution for massively parallel data center *** results may contribute to the ongoing developments in the theory of optical field recovery and the potential design considerations for future high-speed optical transceivers.