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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 21 — Jul. 20, 1998
  • pp: 4569–4576

Spectrometer slit-power-coupling calculations for natural and laser guide-star adaptive optics

David W. Tyler and Brent L. Ellerbroek  »View Author Affiliations


Applied Optics, Vol. 37, Issue 21, pp. 4569-4576 (1998)
http://dx.doi.org/10.1364/AO.37.004569


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Abstract

We use numerical calculations to examine the relation between adaptive optics (AO) turbulence compensation and power coupled through a spectrometer slit for both laser and natural guide-star AO systems. The AO system and observing parameters used are relevant to the Gemini-North 8-m telescope. For this study, we separate residual tilt from residual higher-order aberrations to isolate their relative effects under a variety of operating conditions. Our results demonstrate that slit-coupled intensity is not uniquely determined by system Strehl alone; we show that this is due to the differing effects of higher-order and tilt aberrations on the shape of the compensated point-spread function. For the Gemini spectrometer and AO system, the wider point-spread function halo associated with an added residual higher-order aberration reduces slit-coupled intensity more rapidly than a broad point-spread function core induced by residual tilt.

© 1998 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(300.6190) Spectroscopy : Spectrometers

History
Original Manuscript: August 19, 1997
Revised Manuscript: October 28, 1997
Published: July 20, 1998

Citation
David W. Tyler and Brent L. Ellerbroek, "Spectrometer slit-power-coupling calculations for natural and laser guide-star adaptive optics," Appl. Opt. 37, 4569-4576 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-21-4569


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References

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