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Review of Scientific Instruments / Volume 79 / Issue 10 / OPTICS; ATOMS AND MOLECULES; SPECTROSCOPY; PHOTON DETECTORS

Rev. Sci. Instrum. 79, 103104 (2008); http://dx.doi.org/10.1063/1.2999544 (7 pages)

A widely tunable laser frequency offset lock with digital counting

Joshua Hughes and Chad Fertig

Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, USA

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(Received 5 August 2008; accepted 17 September 2008; published online 21 October 2008)

We demonstrate a hybrid analog+digital electronic lock to stabilize a dynamically tunable rf offset between two lasers. Our method features an 80 MHz capture range, ±7 GHz tuning range, frequency agility of 1 MHz/μs, and low (<30 ppm) drift in the absolute optical frequency difference after ∼ 1000 s. With this scheme, multiple slave lasers can easily be referenced to one stable master laser, while each remains rapidly and accurately tunable over the wide frequency ranges encountered in typical laser cooling and trapping experiments.

© 2008 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. STRUCTURE OF THE PAPER
  3. COMPARISON TO OTHER SCHEMES
  4. DESCRIPTION OF THE METHOD
  5. QUANTIZATION ERROR LIMITED STABILITY OF A DIGITALLY COUNTED FREQUENCY SERVOLOOP
  6. EXPERIMENTAL CHARACTERIZATION
  7. CONCLUSION

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KEYWORDS and PACS

Keywords

laser beams, laser cooling, laser frequency stability, laser tuning, radiation pressure

PACS

  • 42.60.Da

    Resonators, cavities, amplifiers, arrays, and rings

  • 42.60.Fc

    Modulation, tuning, and mode locking

  • 42.50.Wk

    Mechanical effects of light on material media, microstructures and particles

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2999544

PUBLICATION DATA

ISSN

0034-6748 (print)  
1089-7623 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    M. Kasevich and S. Chu, Phys. Rev. Lett. 69, 1741 (1992).

    V. Boyer, L. Lising, S. Rolston, and W. Phillips, Phys. Rev. A 70, 043405 (2004).

    U. Schunemann, H. Engler, R. Grimm, M. Weidemuller, and M. Zielonkowski, Rev. Sci. Instrum. 70, 242 (1999)RSINAK000070000001000242000001.


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