Phase noise transfer in high-Q quartz phononic frequency combs

Walter S. Wall, Randy L. Kubena, Yook Kong Yook, Joseph Koehl, Rick J. Joyce

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

We report on observing significant reduction of injected phase noise (more than 20 dB over two decades with a peak reduction of 29 dB) on particular comb teeth in high-Q, phononic frequency combs in AT-cut 100-MHz shear-mode quartz resonators. A frequency comb with teeth spacing of 135 kHz was observed on the fundamental mode resonance when driven off-resonance at power levels more than 22 dBm. Teeth in this comb, which exhibited smaller deviations in frequency than the drive signal, were observed to have significantly reduced phase noise sensitivity compared to the drive. Correspondingly, increased levels of phase noise sensitivity were observed on teeth with larger frequency deviations. Similar noise transfer mechanisms between the drive and teeth in a frequency comb were observed to occur in a one-dimensional duffing oscillator. This effect opens up the possibility of utilizing phononic frequency combs to reduce the noise of conventional oscillators.

Original languageEnglish (US)
Title of host publicationIUS 2020 - International Ultrasonics Symposium, Proceedings
PublisherIEEE Computer Society
ISBN (Electronic)9781728154480
DOIs
StatePublished - Sep 7 2020
Event2020 IEEE International Ultrasonics Symposium, IUS 2020 - Las Vegas, United States
Duration: Sep 7 2020Sep 11 2020

Publication series

NameIEEE International Ultrasonics Symposium, IUS
Volume2020-September
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2020 IEEE International Ultrasonics Symposium, IUS 2020
Country/TerritoryUnited States
CityLas Vegas
Period9/7/209/11/20

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Keywords

  • Duffing
  • High-Q quartz AT-cut resonators
  • Noise transfer
  • Nonlinearities
  • Phase noise
  • Phononic frequency combs

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