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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 20, Iss. 5 — May. 1, 2003
  • pp: 816–824

Observability of the Risken–Nummedal–Graham–Haken instability in Nd:YAG lasers

Eugenio Roldán, Germán J. de Valcárcel, Javier F. Urchueguı́a, and José M. Guerra  »View Author Affiliations


JOSA B, Vol. 20, Issue 5, pp. 816-824 (2003)
http://dx.doi.org/10.1364/JOSAB.20.000816


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Abstract

Multilongitudinal mode instability in ring Nd:YAG lasers is theoretically analyzed. After we review the way in which the standard two-level laser theory applies to this laser we extend the theoretical treatment to include transverse effects. We do this by taking into account the finite transverse section of the active medium and by assuming a Gaussian transverse distribution for the intracavity field. Finally we demonstrate that multimode emission develops whenever the intracavity field waist diameter is almost equal to the active rod diameter. We conclude that continuous-wave diode-pumped Nd:YAG lasers with low cavity losses are good candidates for the observation of the Risken–Nummedal–Graham–Haken instability.

© 2003 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3530) Lasers and laser optics : Lasers, neodymium
(190.0190) Nonlinear optics : Nonlinear optics
(190.3100) Nonlinear optics : Instabilities and chaos

Citation
Eugenio Roldán, Germán J. de Valcárcel, Javier F. Urchueguía, and José M. Guerra, "Observability of the Risken–Nummedal–Graham–Haken instability in Nd:YAG lasers," J. Opt. Soc. Am. B 20, 816-824 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-5-816

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