Vortex beam intensity multiplexing communication system
A vortex beam and multiplexing communication technology, which is applied in the field of electrical communication systems, can solve the problems of many devices, difficult small integration, complex structure, etc., and achieve high gain, easy generation and transmission, and improved communication capacity.
Active Publication Date: 2014-11-26
HEBEI UNIV OF TECH
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a vortex beam intensity multiplexing communication system, which is a low-order vortex beam intensity multiplexing with two topological charge numbers l=0, 1, and the system is set to emit a vortex beam Intensity, five vortex beam detectors, two switch circuits and display circuits are placed, and the low-order vortex beam separation of multiplexing two topological charge numbers l=0, 1 is realized, which overcomes the existing technology in realizing the beam track In angular momentum state multiplexing, the disadvantages of using many devices, complex structure and not easy to small integration
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Embodiment 1
[0042] as above figure 1 The example shown and figure 2 The illustrated embodiment constructs a vortex beam intensity multiplexing communication system of this embodiment, wherein the size of the first vortex beam detector 201 for detecting the low-order vortex beam with the number of topological charges l=0 is set to be the radius R 1 =0.600×E n0 , the radii of the second vortex beam detector, the third vortex beam detector, the fourth vortex beam detector and the fifth vortex beam detector are all R 2 =0.48×En0 .
Embodiment 2
[0044] Except that the radii of the second vortex beam detector, the third vortex beam detector, the fourth vortex beam detector and the fifth vortex beam detector are R 2 =0.56×E n0 Except, other is with embodiment 1.
Embodiment 3
[0046] Except that the radii of the second vortex beam detector, the third vortex beam detector, the fourth vortex beam detector and the fifth vortex beam detector are R 2 =0.64×E n0 Except, other is with embodiment 1.
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The invention provides a vortex beam intensity multiplexing communication system, which relates to an electrical communication system using optical communication as a transmission path, namely low order vortex beam intensity multiplexing of two topological charge numbers. The vortex beam intensity multiplexing communication system comprises a first signal source, a second signal source, a first power amplifier, a second power amplifier, topological charge number low order vortex beam emitters, a coupler, transmission media, five vortex beam detectors, fixed racks of the vortex beam detectors, a first switching circuit, a second switching circuit, a first display circuit and a second display circuit; the electrical communication system can realize the low order vortex beam intensity multiplexing of two topological charges by adopting and setting vortex beam sending intensity, and arranging the five vortex beam detectors, the two switching circuits and the display circuits, so that the defects, such as a large number of using devices, a complex structure and hardiness in small-scale integration, existing in the process for realizing the beam track angular momentum multiplexing in the prior art can be overcome.
Description
technical field [0001] The technical solution of the invention relates to an electrical communication system using optical communication as a transmission path, specifically a vortex beam intensity multiplexing communication system. Background technique [0002] The optical vortex has a spiral phase structure, the orbital angular momentum it carries contains a singular point, and the maximum value appears in the radial direction. The study of the optical vortex has formed a new branch of singular optics, and has been used in quantum optics and free space optical communication. It has a wide range of applications in many fields. At present, researchers in this field focus on the generation method and transmission process of vortex beams, and develop vortex beams of different orders through spatial light modulators, helical phase plates, fully helical fibers and multimode fibers. CN202110376U announced the use of a reflective spatial light modulator to generate a propeller-ty...
Claims
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IPC IPC(8): H04J14/00G02B27/10G21K1/00
Inventor 赵红东孙梅代秀红褚立志张广林代红丽
Owner HEBEI UNIV OF TECH
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