Research progress of one-to-many transmitting antenna for optical wireless communication
Optical antennas play the role of transmitting and receiving coupled optical signals in optical wireless communication,and a pair of multipoint transmitting antennas can expand optical wireless communication applications.Summarize the development of one-to-multipoint optical antennas at home and abroad,and introduces the basic prin-ciples of optical fiber array structure,three-concentric sphere structure and rotating paraboloid one-to-multipoint opti-cal antenna.Finally,the development prospects of this field are foreseen.Optical wireless communication is an emer-ging communication technology with advantages of high speed,large capacity and good security.However,the tradi-tional optical wireless communication system has the limitation of single-to-single communication mode,which can't satisfy the demand of multi-user simultaneous communication.Optical antenna plays the role of transmitting and re-ceiving coupled optical signals in optical wireless communication,and a pair of multipoint transmitting antennas can expand the applications of optical wireless communication.The development of one-to-multipoint optical antennas at home and abroad is summarized,and the basic principle of one-to-multipoint optical antennas is introduced.Several existing one-to-multipoint optical antennas design schemes are discussed.Finally,the development trend of this field and the future development direction are prospected.
optical wireless communicationoptical antennasone-point to multi-pointbasic principles
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