Optical frequency synthesizer with femtosecond mode-locked laser with zero carrier-offset frequency

Seong Tae Park, Eok Bong Kim, Jin Yong Yeom, Tai Hyun Yoon

Research output: Contribution to journalArticle


We report the experimental details of an optical frequency synthesizer based on a frequency-stabilized femtosecond mode-locked Ti:sapphire laser for absolute optical frequency measurement. The repetition rate frep of the system is 100 MHz and is phase-locked to a Cs atomic clock, and the carrier-envelop-offset (CEO) frequency is phase-locked to a subharmonic of frep (actually to zero) by using a self-referencing technique. As a result, we have established a phase coherent link between a microwave frequency standard and the nth mode of an optical frequency comb by the relation fn = nfrep, where n is an integer. Absolute optical frequency measurements should be straightforward using this new optical frequency synthesizer.

Original languageEnglish
Pages (from-to)622-626
Number of pages5
JournalJournal of the Korean Physical Society
Issue number5
Publication statusPublished - 2003 May 1
Externally publishedYes



  • Carrier-offset phase stabilization
  • Femtosecond mode-locked laser
  • Optical comb
  • Optical frequency synthesizer

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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