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Applied Optics

Applied Optics


  • Vol. 43, Iss. 31 — Nov. 1, 2004
  • pp: 5860–5863

Diode-laser frequency stabilization by two-frequency Doppler-broadened absorption spectroscopy

Jin-Long Peng and Hyeyoung Ahn  »View Author Affiliations

Applied Optics, Vol. 43, Issue 31, pp. 5860-5863 (2004)

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We demonstrate a robust method for frequency stabilization of a diode laser by two Doppler-broadened absorption spectra of the cesium D2 line. This technique employs an acousto-optical modulator to generate another frequency component from a diode laser to perform the spectroscopy. The 852-nm diode laser with frequency stabilization at the zero crossing of the error signal showed a peak-to-peak fluctuation of 800 kHz compared with a frequency-stabilized femtosecond laser over a 2-h period. This frequency-locking method is free of modulation and can be applied to frequency discriminators as well as to atomic resonances.

© 2004 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.2020) Lasers and laser optics : Diode lasers
(300.1030) Spectroscopy : Absorption

Original Manuscript: January 15, 2004
Revised Manuscript: August 4, 2004
Manuscript Accepted: August 5, 2004
Published: November 1, 2004

Jin-Long Peng and Hyeyoung Ahn, "Diode-laser frequency stabilization by two-frequency Doppler-broadened absorption spectroscopy," Appl. Opt. 43, 5860-5863 (2004)

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