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Ferguson TR, Smithers ME, Perkins JF. Unstable resonator with canceling edge waves: rectangular aperture. Appl Opt. 1986;25(5):672-7doi: 10.1364/ao.25.000672.
Ferguson, T. R., Smithers, M. E., & Perkins, J. F. (1986). Unstable resonator with canceling edge waves: rectangular aperture. Applied optics, 25(5), 672-7. https://doi.org/10.1364/ao.25.000672
Ferguson, T R, et al. "Unstable resonator with canceling edge waves: rectangular aperture." Applied optics vol. 25,5 (1986): 672-7. doi: https://doi.org/10.1364/ao.25.000672
Ferguson TR, Smithers ME, Perkins JF. Unstable resonator with canceling edge waves: rectangular aperture. Appl Opt. 1986 Mar 01;25(5):672-7. doi: 10.1364/ao.25.000672. PMID: 18231233.
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Appl Opt. 1986 Mar 01;25(5):672-7. doi: 10.1364/ao.25.000672.

Unstable resonator with canceling edge waves: rectangular aperture.

Applied optics

T R Ferguson, M E Smithers, J F Perkins

Affiliations

  1. U.S. Air Force Weapons Laboratory/ARDF, Kirtland Air Force Base, New Mexico 87117-6008, USA.

PMID: 18231233 DOI: 10.1364/ao.25.000672

Abstract

The deleterious effects of diffraction by the outcoupling aperture on optical resonator intensity profiles, feedback ratios, alignment sensitivities, and dependence of mode separation on Fresnel numbers can be alleviated by adding a phase step near the edge of the feedback mirror. The required locations and magnitudes of the steps for rectangular apertures are shown to be near the values for circular apertures. Improvements in intensity profiles are shown for both centered and off-centered apertures. Failure of the method when one edge of the aperture approaches the optic axis is analyzed.

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