May 31, 2018

Hybrid opto-electronic oscillator for single-sideband microwave photonics

  • Alouini M.
  • Bouhier S.
  • Romanelli M.
  • Thorette A.
  • Vallet M.
  • Van Dijk F.

© 2018 Institution of Engineering and Technology. All rights reserved. A single-sideband opto-RF oscillator based on a monolithic InGaAsP chip containing two distributed feedback (DFB) lasers is demonstrated. The heterodyne signal is stabilised by a hybrid method, combining optical and electronic feedback. It leads to a locking of the beating frequency onto a filtered version of itself. The table-top setup provides a phase noise level down to ?75 dBc/Hz at 1 kHz offset from a 10 GHz carrier. Potential phase noise improvement and integration scheme in a single component are discussed.

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