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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 4, Iss. 10 — May. 10, 1999
  • pp: 400–410

Three-dimensional field structure in open unstable cavities Part II: Active cavity results

Chris C. Khamnei and Kurt E. Oughstun  »View Author Affiliations

Optics Express, Vol. 4, Issue 10, pp. 400-410 (1999)

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The three-dimensional field distribution of the diffractive cavity mode structure in an active, open, unstable laser resonator is presented as a function of the equivalent Fresnel number of the cavity. The active cavity mode structures are compared to that of the corresponding passive cavity so that the effects of a spatially extended, homogeneously broadened, saturable gain medium on the cavity field structure may be ascertained. The qualitative structure of this intracavity field distribution, including the central intensity core (or oscillator filament), is explained in terms of the Fresnel zone structure defined over the cavity feedback aperture.

© Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.4780) Lasers and laser optics : Optical resonators

ToC Category:
Research Papers

Original Manuscript: March 5, 1999
Published: May 10, 1999

Kurt Oughstun and Chris Khamnei, "Three-dimensional field structure in open unstable cavities Part II: Active cavity results," Opt. Express 4, 400-410 (1999)

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