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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3107–3109

Absolute frequency stabilization of an extended-cavity diode laser against Doppler-free H 2 O 17 absorption lines at 1.384 μ m

Gianluca Galzerano, Eugenio Fasci, Antonio Castrillo, Nicola Coluccelli, Livio Gianfrani, and Paolo Laporta  »View Author Affiliations

Optics Letters, Vol. 34, Issue 20, pp. 3107-3109 (2009)

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We report the frequency stabilization of a cw extended-cavity diode laser against saturated absorption lines of the H 2 O 17 isotopologue of water vapor at around 1.384 μ m . The saturation of rotovibrational transitions is achieved by filling a high-finesse optical resonator with H 2 O 17 at low pressure and by locking the laser frequency to the resonator by using the Pound–Drever–Hall technique. Absolute frequency stabilization is obtained, locking the cavity resonance to the center of the sub-Doppler line by means of the wavelength modulation method. A relative frequency stability of σ y ( τ ) = 10 13 ( 0.1 τ 2 + 0.9 ) 1 2 is demonstrated for integration times in the range 4 ms < τ < 30 s .

© 2009 Optical Society of America

OCIS Codes
(300.6320) Spectroscopy : Spectroscopy, high-resolution
(300.6420) Spectroscopy : Spectroscopy, nonlinear
(300.6460) Spectroscopy : Spectroscopy, saturation
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:

Original Manuscript: July 28, 2009
Revised Manuscript: September 16, 2009
Manuscript Accepted: September 16, 2009
Published: October 6, 2009

Gianluca Galzerano, Eugenio Fasci, Antonio Castrillo, Nicola Coluccelli, Livio Gianfrani, and Paolo Laporta, "Absolute frequency stabilization of an extended-cavity diode laser against Doppler-free H217O absorption lines at 1.384 μm," Opt. Lett. 34, 3107-3109 (2009)

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