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Optica Publishing Group
  • Current Optics and Photonics
  • Vol. 2,
  • Issue 1,
  • pp. 96-100
  • (2018)

Tunable Low Phase-noise Microwave Generation Utilizing an Optoelectronic Oscillator and a Fiber Bragg Grating

Open Access Open Access

Abstract

A tunable low-phase-noise microwave generation structure that utilizes an optoelectronic oscillator (OEO) and a fiber Bragg grating (FBG) is proposed and experimentally demonstrated in this article. This structure has no particular requirement for the band width of the laser, and its tunability is realized through adjusting the central frequency of the tunable FBG. A detailed theoretical analysis is established and confirmed via an experiment. A high-purity microwave signal with a frequency tunable from 6 to 12 GHz is generated. The single-sideband phase noise of the generated signal at 10.2 GHz is −117.2 dBc/Hz, at a frequency offset of 10 kHz.

© 2018 Optical Society of Korea

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