Demystifying Opto-Quantum Communication — PART I

  1. Amplitude difference
  2. Phase difference
  3. Combination of both phase and amplitude difference.
  1. Emission Wavelength (because different have different level of attenuation)
  2. Spectral Width (whether it is a broadband emitter or a tunable emitter),
  3. Modulation Capabilities
  4. Ability to interface with optical fiber (the channel by which our information will be sent)
  5. Finally the compactness, reliability and the price.
Simple Diagram to show the above process (taken from web)

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