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Applied Optics

Applied Optics


  • Vol. 37, Iss. 15 — May. 20, 1998
  • pp: 3295–3298

Frequency-stabilized diode laser with the Zeeman shift in an atomic vapor

Kristan L. Corwin, Zheng-Tian Lu, Carter F. Hand, Ryan J. Epstein, and Carl E. Wieman  »View Author Affiliations

Applied Optics, Vol. 37, Issue 15, pp. 3295-3298 (1998)

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We demonstrate a robust method of stabilizing a diode laser frequency to an atomic transition. This technique employs the Zeeman shift to generate an antisymmetric signal about a Doppler-broadened atomic resonance, and therefore offers a large recapture range as well as high stability. The frequency of a 780-nm diode laser, stabilized to such a signal in Rb, drifted less than 0.5 MHz peak–peak (1 part in 109) in 38 h. This tunable frequency lock can be constructed inexpensively, requires little laser power, rarely loses lock, and can be extended to other wavelengths by use of different atomic species.

© 1998 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: October 9, 1997
Revised Manuscript: February 2, 1998
Published: May 20, 1998

Kristan L. Corwin, Zheng-Tian Lu, Carter F. Hand, Ryan J. Epstein, and Carl E. Wieman, "Frequency-stabilized diode laser with the Zeeman shift in an atomic vapor," Appl. Opt. 37, 3295-3298 (1998)

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  1. L. S. Cutler, “Frequency stabilized laser system,” U.S. patent3,534,292 (13October1970).
  2. C. E. Wieman, L. Hollberg, “Using diode lasers for atomic physics,” Rev. Sci. Instrum. 62, 1–20 (1991);K. B. MacAdam, A. Steinbach, C. Wieman, “A narrow-band tunable diode laser system with grating feedback and a saturated absorption spectrometer for Cs and Rb,” Am. J. Phys. 60, 1098–1111 (1992). [CrossRef]
  3. B. Cheron, H. Gilles, J. Havel, O. Moreau, H. Sorel, “Laser frequency stabilization using Zeeman effect,” J. Phys. III 4, 401–406 (1994).
  4. For a discussion of saturated absorption spectroscopy, see W. Demtröder , Laser Spectroscopy (Springer-Verlag, New York, 1996).
  5. We used the material with part number PSM1-250-3X36C from the Magnet Source, 607-T S. Gilbert St., Castle Rock, Colo. 80104, 1-800-525-3536. Although uniformity is not critical to stability, we minimized variations to 5% along the field axis of symmetry by spacing the inside rings closer together than the outer ones.

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