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 6x10−13 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.
Optical frequency comb assisted laser system for multiplex precision spectroscopy / L. Consolino; G. Giusfredi; P. De Natale; M. Inguscio; and P. Cancio. - In: OPTICS EXPRESS. - ISSN 1094-4087. - ELETTRONICO. - 19:(2011), pp. 3155-3162. [10.1364/OE.19.003155]
Optical frequency comb assisted laser system for multiplex precision spectroscopy
GIUSFREDI, GIOVANNI;DE NATALE, PAOLO;INGUSCIO, MASSIMO;
2011
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 6x10−13 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.
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