An ultra-stable referenced interrogation system in the deep ultraviolet for a mercury optical lattice clock

Autor: R. Chicireanu, S. T. Dawkins, Jacques Millo, Sébastien Bize, C. Mandache, Michael Petersen, Y. Le Coq, Daniel Varela Magalhães
Přispěvatelé: Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Métrologie des fréquences optiques, Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Escola de Engenharia de São Carlos, Universidade de São Paulo, Institut de Physique Nucléaire, Atomique et de Spectroscopie, Université de Liège (IPNAS)
Rok vydání: 2009
Předmět:
Zdroj: Applied Physics B-Laser and Optics
Applied Physics B-Laser and Optics, 2010, 99, pp.41-46. ⟨10.1007/s00340-009-3830-3⟩
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
ISSN: 1432-0649
0946-2171
DOI: 10.1007/s00340-009-3830-3
Popis: We have developed an ultra-stable source in the deep ultraviolet, suitable to fulfill the interrogation requirements of a future fully-operational lattice clock based on neutral mercury. At the core of the system is a Fabry-P\'erot cavity which is highly impervious to temperature and vibrational perturbations. The mirror substrate is made of fused silica in order to exploit the comparatively low thermal noise limits associated with this material. By stabilizing the frequency of a 1062.6 nm Yb-doped fiber laser to the cavity, and including an additional link to LNE-SYRTE's fountain primary frequency standards via an optical frequency comb, we produce a signal which is both stable at the 1E-15 level in fractional terms and referenced to primary frequency standards. The signal is subsequently amplified and frequency-doubled twice to produce several milliwatts of interrogation signal at 265.6 nm in the deep ultraviolet.
Comment: 7 pages, 6 figures
Databáze: OpenAIRE