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Systems and methods for modular deployment and upgrade of multiple optical spectrum bands in optical transmission systems

  • US 10,237,633 B2
  • Filed: 02/16/2017
  • Issued: 03/19/2019
  • Est. Priority Date: 02/16/2017
  • Status: Active Grant
First Claim
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1. An optical node supporting a modular deployment and upgrade of optical spectrum, the optical node comprising:

  • one or more C+L-Band amplifier modules; and

    a modular base module including a plurality of ports and which is configured to interface one or more C-Band optical modems;

    wherein, in an initial deployment configuration, the modular base module includeschannelized Amplified Spontaneous Emission (ASE) loading for select channels in the C-Band via a first ASE noise source coupled to a multiplexer for the C-Band,bulk ASE loading over the L-Band via a second ASE noise source coupled to an L-Band output, andan upgrade port for connection to an L-Band upgrade module, andwherein to upgrade from the initial deployment configuration;

    the L-Band upgrade module is connected to the upgrade port,the bulk ASE loading is turned down as L-Band channelized ASE loading is added via a third ASE noise source, andone or more L-Band channels are added as corresponding L-Band channelized ASE loading is turned down.

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