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

Bibcode
2016SPIE.9908E..64P
DOI
10.1117/12.2231434
Probst, R. A.; Lo Curto, Gaspare; Ávila, Gerardo; Brucalassi, Anna; Canto Martins, Bruno L.; de Castro Leão, Izan; Esposito, M.; González Hernández, J. I.; Grupp, Frank; Hänsch, Theodor W.; Holzwarth, Ronald; Kellermann, Hanna; Kerber, Florian; Mandel, Olaf; Manescau, Antonio; Pasquini, Luca; Pozna, Eszter; Rebolo, R.; Renan de Medeiros, José; Stark, Sebastian P.; Steinmetz, Tilo; Suárez Mascareño, A.; Udem, Thomas; Urrutia, Josefina; Wu, Yuanjie
Referencia bibliográfica

Proceedings of the SPIE, Volume 9908, id. 990864 16 pp. (2016).

Fecha de publicación:
8
2016
Número de autores
25
Número de autores del IAC
4
Número de citas
16
Número de citas referidas
15
Descripción
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.
Tipo
Sin árbitro

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