We report the frequency stabilization of a cw extended-cavity diode laser against saturated absorption lines of the H217O isotopologue of water vapor at around 1.384 μm. The saturation of rotovibrational transitions is achieved by filling a high-finesse optical resonator with H2 O 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 σy (τ)= 10-18(0. 1τ-2 + 0.9)1/2 is demonstrated for integration times in the range 4 ms< τ<30 S. © 2009 Optical Society of America.

Absolute frequency stabilization of an extended-cavity diode laser against Doppler-free H217O absorption lines at 1.384 μm

Galzerano G.;Coluccelli N.;Laporta P.
2009-01-01

Abstract

We report the frequency stabilization of a cw extended-cavity diode laser against saturated absorption lines of the H217O isotopologue of water vapor at around 1.384 μm. The saturation of rotovibrational transitions is achieved by filling a high-finesse optical resonator with H2 O 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 σy (τ)= 10-18(0. 1τ-2 + 0.9)1/2 is demonstrated for integration times in the range 4 ms< τ<30 S. © 2009 Optical Society of America.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1205758
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 28
  • ???jsp.display-item.citation.isi??? 26
social impact