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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 11 — Nov. 1, 2004
  • pp: 2025–2034

Spectra of single-atom lasers

J. P. Clemens, P. R. Rice, and L. M. Pedrotti  »View Author Affiliations


JOSA B, Vol. 21, Issue 11, pp. 2025-2034 (2004)
http://dx.doi.org/10.1364/JOSAB.21.002025


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Abstract

We calculate the output spectrum of a single-atom laser in a microcavity across a wide range of operating conditions. We considered both three-level and four-level atomic level structures. We used a numerical routine to calculate spectra that is more efficient than others used previously. We found that the linewidth of a single-atom laser generally scales as the inverse of the photon number and that there is no pump value at which an abrupt change occurs that might locate a lasing threshold. For a three-level gain atom we found vacuum–Rabi splitting similar to that found by Loffler [Phys. Rev. A 55, 3923 (1997)] and used quantum trajectory theory to obtain a new interpretation of the results. For a four-level gain atom the vacuum–Rabi structure can appear at a small nonzero pump level and is maintained for large pumps, even when the intracavity photon number is larger than unity and the laser is on. We use the quantum trajectory approach to explain these results.

© 2004 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.3430) Quantum optics : Laser theory

Citation
J. P. Clemens, P. R. Rice, and L. M. Pedrotti, "Spectra of single-atom lasers," J. Opt. Soc. Am. B 21, 2025-2034 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-11-2025

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