8 July 2014 A laser frequency comb featuring sub-cm/s precision for routine operation on HARPS
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Abstract
We present a re-engineered version of the laser frequency comb that has proven a few-cm/s calibration repeatability on the HARPS spectrograph during past campaigns. The new design features even better performance characteristics. The newly arranged oscillator, filter cavities and fiber injection for spectral broadening allow robust long term operation, controlled from a remote site. Its automation features enable easy operation for non-experts. The system is being prepared for installation on the HARPS spectrograph in fall of 2014, and will subsequently become available to the astronomical community.
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Rafael A. Probst, Rafael A. Probst, Gaspare Lo Curto, Gaspare Lo Curto, Gerardo Avila, Gerardo Avila, Bruno L. Canto Martins, Bruno L. Canto Martins, José Renan de Medeiros, José Renan de Medeiros, Massimiliano Esposito, Massimiliano Esposito, Jonay I. González Hernández, Jonay I. González Hernández, Theodor W. Hänsch, Theodor W. Hänsch, Ronald Holzwarth, Ronald Holzwarth, Florian Kerber, Florian Kerber, Izan C. Leão, Izan C. Leão, Antonio Manescau, Antonio Manescau, Luca Pasquini, Luca Pasquini, Rafael Rebolo-López, Rafael Rebolo-López, Tilo Steinmetz, Tilo Steinmetz, Thomas Udem, Thomas Udem, Yuanjie Wu, Yuanjie Wu, } "A laser frequency comb featuring sub-cm/s precision for routine operation on HARPS", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91471C (8 July 2014); doi: 10.1117/12.2055784; https://doi.org/10.1117/12.2055784
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