Seaworthy Quantum Key Distribution Design and Validation (SEAKEY)

Abstract

In this report we summarize the technical progress accomplished during the first quarter of the third year of the SeaKey program. In this quarter we continued work along the experimental portion of the SeaKey program. The work we have done this quarter continues to evaluate the performance of our homodyne receiver built for decoding phase encoded coherent states. Evaluation by our theorists of the data taken to date has identified excess noise in our receiver, which we spent most of this quarter diagnosing, tracking down and remedying. The progress presented here shows our techniques and efforts to identify and quantify the noise, which we have determined to come from our laser sources. Finally, we present our path forward in achieving shot noise limited performance for the homodyne receiver, which includes the stable CW local oscillator and balanced detector.

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Document Details

Document Type
Technical Report
Publication Date
May 26, 2016
Accession Number
AD1009636

Entities

People

  • Jonathan Habif

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Analyzers
  • Attenuation
  • Coding
  • Contracts
  • Decoding
  • Detectors
  • Frequency
  • Information Processing
  • Lasers
  • Local Oscillators
  • Modulation
  • Oscillators
  • Phase Modulators
  • Quantum Key Distribution
  • Radio Frequency Amplifiers
  • Shot Noise
  • Waveplates

Readers

  • Marine Ecological Systems Migration
  • Radio communications and signal processing.
  • Technical Research and Report Writing.

Technology Areas

  • Directed Energy
  • Quantum Computing
  • Quantum Science - Quantum Key Distribution