Optical millimeter-wave up-conversion employing frequency quadrupling without optical filtering

Chun-Ting Lin*, Po Tsung Shih, Jyehong Chen, Wen Jr Jiang, Sheng Peng Dai, Peng Chun Peng, Yen Lin Ho, Sien Chi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


This study presents two optical frequency quadrupling techniques for generating high-purity millimeter-wave signals with optical carrier suppression. To our best knowledge, this investigation demonstrates for the first time that a frequency quadrupling system requires only a single integrated Mach-Zehnder modulator without an optical narrowband filter to remove undesired optical sidebands. Since no optical filter is needed, fast frequency tuning is straightforward and this approach is particularly attractive for the optical up-conversion in the wavelength-division-multiplexing radio-over-fiber systems. This study provides both theoretical analysis and experimental demonstration. The generated optical millimeter-wave signals are of very high quality with optical carrier and undesired harmonic distortion suppression ratio of more than 36 dB.

Original languageEnglish
Article number5159348
Pages (from-to)2084-2092
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number1
StatePublished - 1 Jan 2009


  • Mach-zehnder modulator (MZM)
  • Optical frequency multiplication
  • Optical millimeter wave
  • Radio-over-fiber (RoF)


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