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Applied Optics

Applied Optics


  • Vol. 23, Iss. 17 — Sep. 1, 1984
  • pp: 2944–2949

Alignment of resonant optical cavities

Dana Z. Anderson  »View Author Affiliations

Applied Optics, Vol. 23, Issue 17, pp. 2944-2949 (1984)

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When an input Gaussian beam is improperly aligned and mode-matched to a stable optical resonator, the electric field in the resonator couples to off-axis spatial eigenmodes. We show that a translation of the input axis or a mismatch of the beam waist to the resonator waist size causes a coupling of off-axis modes which is inphase with the input field. On the other hand, a tilt of the input beam or a mismatch of the beam waist position to cavity waist position couples to these modes in quadrature phase. We also propose a method to measure these coupling coefficients and thereby provide a means to align and mode-match a resonant optical cavity in real time.

© 1984 Optical Society of America

Original Manuscript: April 12, 1984
Published: September 1, 1984

Dana Z. Anderson, "Alignment of resonant optical cavities," Appl. Opt. 23, 2944-2949 (1984)

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  1. A. Rudiger, R. Schilling, L. Schnupp, W. Winkler, H. Billing, K. Maischberger, “A Mode Selector to Suppress Fluctuations in Laser Beam Geometry,” Opt. Acta 28, 641 (1981). [CrossRef]
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