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Multiplexing two separate optical links with the same wavelength using asymmetric combining and splitting

  • US 9,729,267 B2
  • Filed: 12/08/2015
  • Issued: 08/08/2017
  • Est. Priority Date: 12/11/2014
  • Status: Active Grant
First Claim
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1. An optical communications system comprising:

  • a first optical transmitter and a first optical receiver optically coupled to a first asymmetric optical combiner/splitter, the first asymmetric combiner/splitter coupled to optical media; and

    a second optical transmitter and a second optical receiver optically coupled to a second asymmetric optical combiner/splitter, the second asymmetric combiner/splitter remotely coupled to the optical media, wherein;

    each asymmetric combiner/splitter comprises a high transmittance ratio and a low transmittance ratio;

    the first asymmetric optical combiner/splitter is configured to attenuate a first signal transmitted from the first optical transmitter based on the low transmittance ratio prior to providing the first signal to the optical media;

    the second asymmetric optical combiner/splitter is configured to attenuate the first signal received from the optical media based on the high transmittance ratio prior to providing the first signal to the first optical receiver;

    the second asymmetric optical combiner/splitter is configured to attenuate a second signal transmitted from the second optical transmitter based on the low transmittance ratio prior to providing the second signal to the optical media;

    the first asymmetric optical combiner/splitter is configured to attenuate the second signal received from the optical media based on the high transmittance ratio prior to providing the second signal to the second optical receiver; and

    the first optical transmitter and the second optical transmitter are configured to transmit optical signals at substantially a same wavelength.

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