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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 8 — Aug. 1, 2012
  • pp: 2176–2188

Modeling of pulsed-laser guide stars for the Thirty Meter Telescope project

Simon M. Rochester, Angel Otarola, Corinne Boyer, Dmitry Budker, Brent Ellerbroek, Ronald Holzlöhner, and Lianqi Wang  »View Author Affiliations


JOSA B, Vol. 29, Issue 8, pp. 2176-2188 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002176


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Abstract

The Thirty Meter Telescope (TMT) has been designed to include an adaptive optics system and associated laser guide star (LGS) facility to correct for the image distortion due to Earth’s atmospheric turbulence and achieve diffraction-limited imaging. We have calculated the response of mesospheric sodium atoms to a pulsed laser that has been proposed for use in the LGS facility, including modeling of the atomic physics, the light–atom interactions, and the effect of the geomagnetic field and atomic collisions. This particular pulsed-laser format is shown to provide comparable photon return to a continuous-wave (cw) laser of the same average power; both the cw and pulsed lasers have the potential to satisfy the TMT design requirements for photon return flux.

© 2012 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1310) Atmospheric and oceanic optics : Atmospheric scattering
(300.2530) Spectroscopy : Fluorescence, laser-induced
(350.1260) Other areas of optics : Astronomical optics
(010.1350) Atmospheric and oceanic optics : Backscattering

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: April 10, 2012
Manuscript Accepted: June 4, 2012
Published: August 1, 2012

Citation
Simon M. Rochester, Angel Otarola, Corinne Boyer, Dmitry Budker, Brent Ellerbroek, Ronald Holzlöhner, and Lianqi Wang, "Modeling of pulsed-laser guide stars for the Thirty Meter Telescope project," J. Opt. Soc. Am. B 29, 2176-2188 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-8-2176

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