10.1364/OE.25.015539
https://zenodo.org/records/823058
oai:zenodo.org:823058
Gobron, O.
O.
Gobron
LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 avenue de l'Observatoire, 75014 Paris, France
Jung, K.
K.
Jung
LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 avenue de l'Observatoire, 75014 Paris, France
Galland, N.
N.
Galland
Univ. Grenoble Alpes and CNRS, Inst. NEEL, F-38042 Grenoble, France
Predehl, K.
K.
Predehl
LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 avenue de l'Observatoire, 75014 Paris, France
Le Targat, R.
R.
Le Targat
LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 avenue de l'Observatoire, 75014 Paris, France
Ferrier, A.
A.
Ferrier
PSL Research University, Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
Goldner, P.
P.
Goldner
PSL Research University, Chimie ParisTech, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
Seidelin, S.
S.
Seidelin
Univ. Grenoble Alpes and CNRS, Inst. NEEL, F-38042 Grenoble, France
Le Coq, Y.
Y.
Le Coq
LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 avenue de l'Observatoire, 75014 Paris, France
Dispersive heterodyne probing method for laser frequency stabilization based on spectral hole burning in rare-earth doped crystals
Zenodo
2017
nanoqtech
metrology
rare earth
laser stabilization
quantum technologies
2017-07-05
https://zenodo.org/communities/nanoqtech-h2020
https://zenodo.org/communities/eu
Creative Commons Attribution 4.0 International
Frequency-locking a laser to a spectral hole in rare-earth doped crystals at cryogenic temperature has been shown to be a promising alternative to the use of high finesse Fabry-Perot cavities when seeking a very high short term stability laser (M. J. Thorpe et al., Nature Photonics 5, 688 (2011)). We demonstrate here a novel technique for achieving such stabilization, based on generating a heterodyne beat-note between a master laser and a slave laser whose dephasing caused by propagation near a spectral hole generate the error signal of the frequency lock. The master laser is far detuned from the center of the inhomogeneous absorption profile, and therefore exhibits only limited interaction with the crystal despite a potentially high optical power. The demodulation and frequency corrections are generated digitally with a hardware and software implementation based on a field-programmable gate array and a Software Defined Radio platform, making it straightforward to address several frequency channels (spectral holes) in parallel.
European Commission
10.13039/501100000780
712721
Nanoscale Systems for Optical Quantum Technologies