Optical microwave frequency up-conversion via a frequency-doubling optoelectronic oscillator

Myunghun Shin*, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations


We propose and demonstrate an optical microwave modulator that incorporates a low phase-noise optoelectronic oscillator (OEO) for frequency up-conversion in a radio-over-fiber system. A single Mach-Zehnder lithium-niobate waveguide modulator working as a local oscillator in a frequency-doubling OEO directly up-converts the baseband signals to a carrier band. We demonstrate frequency up-conversion to the 20-GHz band for optical analog signals in the intermediate-frequency (IF) band and for optical digital signals at 1.25 Gb/s. The measured transmission bandwidth for IF modulated signals is greater than 1.5 GHz for transmission over 50.5 km of single-mode fiber.

Original languageEnglish (US)
Pages (from-to)1726-1728
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number21
StatePublished - Nov 1 2007


  • All-optical up-conversion
  • Optical carrier suppression modulation
  • Optical microwave (MW) generation
  • Optoelectronic oscillator (OEO)
  • Radio-over-fiber (ROF)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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