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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 36,
  • Issue 19,
  • pp. 4626-4632
  • (2018)

Monolithically Integrated Microwave Frequency Synthesizer on InP Generic Foundry Platform

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Abstract

A photonic integrated circuit for microwave generation is proposed and experimentally validated. On the microchip, two tunable monochromatic lasers spectrally separated by 0–10.7 nm are monolithically integrated with one high-speed photodiode in heterodyne configuration for enabling continuous RF synthesis from 2 to 42 GHz. Under free-running operation, the two lasers with 20–40 MHz optical linewidth produce RF beat note with $\sim$ 90 MHz electrical linewidth at the on-chip photodiode. This is the first demonstration of such a fully integrated microwave photonic generator developed within an open-access generic foundry platform.

© 2018 IEEE

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