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Shorter wavelength transmission of OAM beams in conventional single mode fiber

  • US 10,084,541 B2
  • Filed: 03/15/2017
  • Issued: 09/25/2018
  • Est. Priority Date: 04/04/2014
  • Status: Active Grant
First Claim
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1. A method for transmission of orbital angular momentum (OAM) data over an optical fiber, comprising:

  • generating an optical signal at a selected wavelength, wherein a ratio of a diameter of a core of the optical fiber to the selected wavelength of the optical signal enables transmission of a predetermined number of orbital angular momentum modes over the optical fiber, wherein generation of the selected wavelength at a first wavelength enables transmission of a first number of OAM modes over the optical fiber and generation of the selected wavelength at a second wavelength enables transmission of a second number of OAM modes over the optical fiber, further wherein the second wavelength of the optical signal is lower than the first wavelength of the optical signal and the second number of OAM modes is higher than the first number of OAM modes;

    modulating the optical signal with at least one input data stream;

    applying an OAM signal to the modulated optical signal to generate an OAM data signal;

    transmitting the OAM data signal over the optical fiber using a fiber launcher; and

    processing a received OAM data signal to extract the at least one input data stream.

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