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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 23 — Nov. 9, 2009
  • pp: 20920–20926

Demonstration of an optical frequency synthesizer with zero carrier-envelope-offset frequency stabilized by the direct locking method

Eok Bong Kim, Jae-hwan Lee, Luu Tran Trung, Won-Kyu Lee, Dai-Hyuk Yu, Han Young Ryu, Chang Hee Nam, and Chang Yong Park  »View Author Affiliations

Optics Express, Vol. 17, Issue 23, pp. 20920-20926 (2009)

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We developed an optical frequency synthesizer (OFS) with the carrier-envelope-offset frequency locked to 0 Hz achieved using the “direct locking method.” This method differs from a conventional phase-lock method in that the interference signal from a self-referencing f-2f interferometer is directly fed back to the carrier-envelope-phase control of a femtosecond laser in the time domain. A comparison of the optical frequency of the new OFS to that of a conventional OFS stabilized by a phase-lock method showed that the frequency comb of the new OFS was not different to that of the conventional OFS within an uncertainty of 5.68×10-16. As a practical application of this OFS, we measured the absolute frequency of an acetylene-stabilized diode laser serving as an optical frequency standard in optical communications.

© 2009 Optical Society of America

OCIS Codes
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(140.3425) Lasers and laser optics : Laser stabilization
(260.7120) Physical optics : Ultrafast phenomena

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: September 23, 2009
Revised Manuscript: October 29, 2009
Manuscript Accepted: October 29, 2009
Published: November 2, 2009

Eok B. Kim, Jae-hwan Lee, Luu Tran Trung, Wong-Kyu Lee, Dai-Hyuk Yu, Han Young Ryu, Chang Hee Nam, and Chang Yong Park, "Demonstration of an optical frequency synthesizer with zero carrier-envelope-offset frequency stabilized by the direct locking method," Opt. Express 17, 20920-20926 (2009)

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