Scientific Results

Optical frequency comb assisted laser system for multiplex precision spectroscopy

Year: 2011

Authors: Consolino L., Giusfredi G., De Natale P., Inguscio M., Cancio P.

Autors Affiliation: European Laboratory for Non-Linear Spectroscopy (LENS), Dipartimento di Fisica, Universit√° degli Studi di Firenze, Via N. Carrara 1, 50019 – Sesto Fiorentino (FI), Italy; Istituto Nazionale di Ottica (INO), Consiglio Nazionale delle Ricerche (CNR), Largo E. Fermi 6, 50125 – Firenze, Italy

Abstract: A laser system composed of two lasers phase-locked onto an Optical Frequency Comb Synthesizer (OFCS), operating around 1083 nm, was developed. An absolute frequency precision of 6×10(-13) at 1s, limited by the OFCS, was measured with a residual rms phase-noise of 71 mrad and 87 mrad for the two phase-locks, respectively. Multiplex spectroscopy on 1083 nm Helium transitions with this set-up is demonstrated. Generalization of this system to a larger number of OFCS assisted laser sources for wider frequency separations, even in other spectral regions, is discussed. (C) 2011 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 19 (4)      Pages from: 3155  to: 3162

More Information: This work was partially funded by CNR and the other European research funding Agencies participating to the European Science Foundation EUROCORES Program EUROQUAM-CIGMA, and by Ente Cassa di Risparmio di Firenze.
KeyWords: Helium; Multiplexing; Optical materials, Absolute frequency; Frequency separation; Helium transition; Laser sources; Laser systems; Optical frequency combs; Precision spectroscopy; Spectral region; Two phase, Natural frequencies
DOI: 10.1364/OE.19.003155

Citations: 12
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