Phase noise measurement of optical heterodyning two-tone signal generated by two free-running lasers

Ryuta Yamanaka, Taka Fujita, Hideyuki Sotobayashi, Atsushi Kanno, Tetsuya Kawanishi

Research output: Contribution to journalArticlepeer-review

Abstract

We evaluated the single side-band phase noise of a 40 GHz beat signal generated by two free-running lasers. This allowed us to verify the utility of the two free-running lasers is verified as a light source for a next-generation radio-over-fiber system using frequency such as those in the millimeter-wave and terahertz bands. We also measured the phase noise of a frequency quadrupler using a Mach-Zehnder modulator for comparison. The phase noise of the two free-running lasers and the frequency quadrupler are - 63.85 and -95.22 dBc/Hz at a 10 kHz offset frequency, respectively.

Original languageEnglish
Pages (from-to)241-244
Number of pages4
JournalIEICE Transactions on Electronics
VolumeE96-C
Issue number2
DOIs
Publication statusPublished - 2013 Feb
Externally publishedYes

Keywords

  • Mach-Zehnder modulator
  • Millimeter wave
  • Phase noise
  • Radio-over-fiber
  • Two free-running lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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