Relative stability of two laser frequency combs for routine operation on HARPS and FOCES

Rafael A. Probst; Gaspare Lo Curto; Gerardo Ávila; Anna Brucalassi; Bruno L. Canto Martins; Izan de Castro Leão; Massimiliano Esposito; Jonay I. González Hernández; Frank Grupp; Theodor W. Hänsch; Ronald Holzwarth; Hanna Kellermann; Florian Kerber; Olaf Mandel; Antonio Manescau; Luca Pasquini; Eszter Pozna; Rafael Rebolo; José Renan de Medeiros; Sebastian P. Stark; Tilo Steinmetz; Alejandro Suárez Mascareño; Thomas Udem; Josefina Urrutia; Yuanjie Wu

doi:10.1117/12.2231434

9 August 2016 Relative stability of two laser frequency combs for routine operation on HARPS and FOCES

Rafael A. Probst, Gaspare Lo Curto, Gerardo Ávila, Anna Brucalassi, Bruno L. Canto Martins, Izan de Castro Leão, Massimiliano Esposito, Jonay I. González Hernández, Frank Grupp, Theodor W. Hänsch, Ronald Holzwarth, Hanna Kellermann, Florian Kerber, Olaf Mandel, Antonio Manescau , Luca Pasquini, Eszter Pozna, Rafael Rebolo, José Renan de Medeiros, Sebastian P. Stark, Tilo Steinmetz, Alejandro Suárez Mascareño, Thomas Udem, Josefina Urrutia, Yuanjie Wu

Author Affiliations +

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 990864 (2016) https://doi.org/10.1117/12.2231434
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We report on the installation of a laser frequency comb (LFC) at the HARPS spectrograph, which we characterize relative to a second LFC that we had brought to HARPS for testing. This allowed us for the first time to probe the relative stability of two independent astronomical LFCs over an extended wavelength range. Both LFCs covered the spectral range of HARPS at least from 460 to 690 nm. After optimization of the fiber coupling to HARPS to suppress modal noise, a relative stability of the two LFCs in the low cm/s range was obtained. In combination with the results of our four earlier LFC test campaigns on HARPS, the available data now cover a time span of more than six years.

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Rafael A. Probst, Gaspare Lo Curto, Gerardo Ávila, Anna Brucalassi, Bruno L. Canto Martins, Izan de Castro Leão, Massimiliano Esposito, Jonay I. González Hernández, Frank Grupp, Theodor W. Hänsch, Ronald Holzwarth, Hanna Kellermann, Florian Kerber, Olaf Mandel, Antonio Manescau , Luca Pasquini, Eszter Pozna, Rafael Rebolo, José Renan de Medeiros, Sebastian P. Stark, Tilo Steinmetz, Alejandro Suárez Mascareño, Thomas Udem, Josefina Urrutia, and Yuanjie Wu "Relative stability of two laser frequency combs for routine operation on HARPS and FOCES", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990864 (9 August 2016); https://doi.org/10.1117/12.2231434

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