Title:
COMMUNICATION METHOD AND DEVICE FOR TERAHERTZ WAVES CARRYING OPTICAL ORBITAL ANGULAR MOMENTUM
Document Type and Number:
WIPO Patent Application WO/2019/218771
Kind Code:
A1
Abstract:
The invention relates to a communication method for terahertz waves carrying optical orbital angular momentum. The method comprises: acquiring at least two terahertz waves carrying optical orbital angular momentum, wherein the at least two terahertz waves carrying the optical orbital angular momentum comprise a first terahertz wave and a second terahertz wave, and the optical orbital angular momentum carried in the first terahertz wave and the optical orbital angular momentum carried in the second terahertz wave are in different modes; modulating the first terahertz wave and the second terahertz wave to obtain a multiplexed beam, wherein the propagation mode of the multiplexed beam is consistent with that of a preset waveguide; and transmitting the multiplexed beam to a receiving end through the preset waveguide. The invention further relates to a communication device for terahertz waves carrying optical orbital angular momentum. For a terahertz communication link carrying optical orbital angular momentum, the above method and device realize channel multiplexing, which can expand the communication capacity of the terahertz communication link, thereby improving the communication efficiency.
Inventors:
ZHENG ZHU (CN)
YANG BIN (CN)
DING QING (CN)
FENG JUNZHENG (CN)
YANG BIN (CN)
DING QING (CN)
FENG JUNZHENG (CN)
Application Number:
PCT/CN2019/078923
Publication Date:
November 21, 2019
Filing Date:
March 20, 2019
Export Citation:
Assignee:
SHENZHEN INST TERAHERTZ TECH & INNOVATION (CN)
SHENZHEN INST TERAHERTZ TECH & INNOVATION CO LTD (CN)
SHENZHEN INST TERAHERTZ TECH & INNOVATION CO LTD (CN)
International Classes:
H04B10/90
Foreign References:
| CN108809440A | 2018-11-13 | |||
| CN106788753A | 2017-05-31 | |||
| CN106130655A | 2016-11-16 |
Other References:
KATHIRVEL NALLAPPAN ET AL.: "Multiplexing of Terahertz Wireless Communication Channels Using Vortex Beams", 2017 42ND INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW- THZ), 1 September 2017 (2017-09-01), XP033164999
IVAN B.DJORDJEVIC: "OAM-Based Hybrid Free-Space Optical-Terahertz Multidimensional Coded Modulation and Physical-Layer Security", IEEE PHOTONICS JOURNAL, vol. 9, 14 August 2017 (2017-08-14), XP011658844, DOI: 10.1109/JPHOT.2017.2724563
IVAN B.DJORDJEVIC: "OAM-Based Hybrid Free-Space Optical-Terahertz Multidimensional Coded Modulation and Physical-Layer Security", IEEE PHOTONICS JOURNAL, vol. 9, 14 August 2017 (2017-08-14), XP011658844, DOI: 10.1109/JPHOT.2017.2724563
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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