Top-of-rack switch of a rack assembly tuned to receive a band of wavelengths from a replicated spectrum of wavelengths provided by a power splitter

An optical communication system, comprising:

• a hub optical transceiver configured for receiving a spectrum of wavelengths, wherein the spectrum of wavelengths includes a plurality of subcarriers, wherein each of the plurality of subcarriers includes a corresponding and unique band of wavelengths taken from the spectrum of wavelengths;
• a power splitter coupled to the hub optical transceiver and configured to receive the spectrum of wavelengths, wherein the power splitter is configured to generate a plurality of replicated spectrum of wavelengths;
• a plurality of top-of-rack switches coupled to the power splitter, each of the plurality of top-of-rack switches configured to receive a corresponding one of the plurality of replicated spectrum of wavelengths;
• and
• a control system coupled to the plurality of top-of-rack switches, wherein the control system is configured to tune each of the plurality of top-of-rack switches to select a corresponding band of wavelengths taken from the corresponding one of the plurality of replicated spectrum of wavelengths.