Rb vapor-cell clock demonstration with a frequency-doubled telecom laser
Nil Almat, Matthieu Pellaton, Willam Moreno, Florian Gruet, Christoph Affolderbach & Gaetano Mileti
| Résumé |
We employ a recently developed laser system, based on a low-noise
telecom laser emitting around 1.56 μm, to evaluate its impact
on the performance of an Rb vapor-cell clock in a continuous-wave
double-resonance scheme. The achieved short-term clock instability
below 2.5·10−13·𝜏−1/2 demonstrates, for the
first time, the suitability of a frequency-doubled telecom laser
for this specific application. We measure and study quantitatively
the impact of laser amplitude and frequency noises and of the ac
Stark shift, which limit the clock frequency stability on short
timescales. We also report on the detailed noise budgets and
demonstrate experimentally that, under certain conditions, the
short-term stability of the clock operated with the low-noise
telecom laser is improved by a factor of three compared to clock
operation using the direct 780-nm laser |
| Mots-clés |
|
| Citation | N. Almat, et al., "Rb vapor-cell clock demonstration with a frequency-doubled telecom laser," Applied Optics, vol. 57, p. 4707-4713, June 2018. |
| Type | Article de périodique (Anglais) |
| Date de publication | 1-6-2018 |
| Nom du périodique | Applied Optics |
| Volume | 57 |
| Pages | 4707-4713 |
| URL | https://doi.org/10.1364/AO.57.004707 |
| Liée au projet | FN Rubidium-Precision double resonance spectroscopy and m... |