title: Nd:YLF laser at 1.3 microm for calcium atom optical clocks and precision spectroscopy of hydrogenic systems.
abstract: We describe single-frequency operation of a diode-pumped Nd:YLF laser in the range 1311.9-1317.2 nm. It can be used for the interrogation of the clock transition in calcium (1314.0 nm) or spectroscopy in hydrogen and metastable singly ionized helium (1312.6 nm). By using a twisted-mode cavity, we have obtained output powers of 830 and 970 mW at 1312.6 and 1314.0 nm, respectively, in a single longitudinal mode.
authors.affiliation: Bureau National de Métrologie-Institut National de Métrologie, Conservatoire National des Arts et Metiers, 292 rue Saint-Martin, Paris F75003, France.
authors.forename: Yann
authors.initials: Y
authors.lastname: Louyer
authors.forename: Mark D
authors.initials: MD
authors.lastname: Plimmer
authors.forename: Patrick
authors.initials: P
authors.lastname: Juncar
authors.forename: Marc E
authors.initials: ME
authors.lastname: Himbert
authors.forename: François
authors.initials: F
authors.lastname: Balembois
authors.forename: Patrick
authors.initials: P
authors.lastname: Georges