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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 13 — Jun. 26, 2006
  • pp: 5975–5983

Complete characterization of a broadband high-finesse cavity using an optical frequency comb

Albert Schliesser, Christoph Gohle, Thomas Udem, and Theodor W. Hänsch  »View Author Affiliations

Optics Express, Vol. 14, Issue 13, pp. 5975-5983 (2006)

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We demonstrate a new method to simultaneously measure spectrally resolved dispersion and losses (finesse) of a passive optical cavity over the entire bandwidth of an optical frequency comb. To this end, we record and analyze the spectral Moiré pattern between the perfectly equidistant frequency comb emitted from a Ti:Sapphire laser and the longitudinal modes of the passive cavity as a function of the laser’s carrier-envelope-offset phase slippage ϕCE. In the group-delay dispersion measurement of additionally introduced optical elements we verify a 2fs2 accuracy in a 2THz resolution bandwidth and find good agreement of the measured performance and the target design of a high reflectance dielectric mirror. The sensitivity of the method is essentially equivalent to a cavity ring down technique allowing us also to readily observe signatures of atmospheric gas species.

© 2006 Optical Society of America

OCIS Codes
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques
(140.4050) Lasers and laser optics : Mode-locked lasers
(230.5750) Optical devices : Resonators
(300.6360) Spectroscopy : Spectroscopy, laser
(320.7080) Ultrafast optics : Ultrafast devices

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: May 3, 2006
Revised Manuscript: May 31, 2006
Manuscript Accepted: June 20, 2006
Published: June 26, 2006

Albert Schliesser, Christoph Gohle, Thomas Udem, and Theodor W. Hänsch, "Complete characterization of a broadband high-finesse cavity using an optical frequency comb," Opt. Express 14, 5975-5983 (2006)

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