The bistatic LGS scheme for sodium layer height characterization (based on the Teide Observatory experimental setup)

Julio A. Castro-Almazán; Jesús J. Fuensalida; Ángel Alonso; Sergio Chueca

doi:10.1117/12.787809

10 July 2008 The bistatic LGS scheme for sodium layer height characterization (based on the Teide Observatory experimental setup)

Julio A. Castro-Almazán, Jesús J. Fuensalida, Ángel Alonso, Sergio Chueca

Author Affiliations +

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 701240 (2008) https://doi.org/10.1117/12.787809
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Laser Guide Stars -LGS- has been widely proposed to extend the domain of stable operation for adaptive optics systems in large telescopes. As LGS are formed in a finite distance, bistatic schemes with two or more additional telescopes has been noted as the most efficient configuration from the point of view of full aperture tip-tilt correction. In these schemes it is crucial to know the height of the LGS. In this sense, an adequate characterization of the messopheric sodium layer is needed. Based on the experience acquired in a bistatic instrumental setup to characterize the sodium layer over the Teide Observatory (Canary Islands), we describe the general height equations and the accuracy required.

Citation Download Citation

Julio A. Castro-Almazán, Jesús J. Fuensalida, Ángel Alonso, and Sergio Chueca "The bistatic LGS scheme for sodium layer height characterization (based on the Teide Observatory experimental setup)", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701240 (10 July 2008); https://doi.org/10.1117/12.787809

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