光通信研究Issue(3)：153-161,9.DOI:10.13756/j.gtxyj.2024.230121
自由空间光通信中被动调制研究进展
Research Progress of Passive Modulation in Free Space Optical Communication
摘要
Abstract
[Objective]Traditional Free Space Optical(FSO)communication requires both ends of the communication to be in-stalled at the same time,including the laser transmitting system,laser receiving system and acquisition,tracking and aiming sys-tem.It results in the problems of weight,volume,power consumption,and equipment complexity,thus limiting the development of FSO communication.Using the passive modulation technology constructed by asymmetric space laser communication link,the design of small volume,light weight and low power consumption of the communication terminal is successfully realized,which provides convenience for the application of small and medium-sized space laser communication technology.[Methods]In this pa-per,the research status of passive modulation at home and abroad is reviewed,which is mainly summarized abroad.In addition,the composition of the reverse modulation system and the working principle of the reverse modulator are described.Common Modulated Retro-Reflector(MRR)such as angle reflector reverse modulator and cat's eye reverse modulator are analyzed.The selection of wavelength and the size of optical receiver aperture are discussed.[Results]This paper summarizes the different imple-mentation types and characteristics of passive modulation,summarizes the application of passive modulation in FSO communica-tion,and looks forward to the future development direction and prospect of this technology.[Conclusion]In the future,passive modulation can be developed along the direction of high speed,focal plane pixelation,two-way communication,coherent detec-tion,and there is a lot of room for development.This paper can provide a reference direction for the research of passive modula-tion and a new idea for the research of FSO communication.关键词
自由空间光通信/被动调制/逆向调制器/猫眼效应Key words
FSO communication/passive modulation/MRR/cat's eye effect分类
信息技术与安全科学引用本文复制引用
李晓鹏,魏梦霞,祝战科,柯熙政..自由空间光通信中被动调制研究进展[J].光通信研究,2024,(3):153-161,9.基金项目
陕西省重点产业创新资助项目(2017ZDCXL-GY-06-01) （2017ZDCXL-GY-06-01）
国家自然科学基金面上资助项目(61377080) （61377080）
