Optically-biased Rydberg microwave receiver enabled by hybrid nonlinear
interferometry
- URL: http://arxiv.org/abs/2403.05310v1
- Date: Fri, 8 Mar 2024 13:39:45 GMT
- Title: Optically-biased Rydberg microwave receiver enabled by hybrid nonlinear
interferometry
- Authors: Sebastian Bor\'owka, Mateusz Mazelanik, Wojciech Wasilewski, Micha{\l}
Parniak
- Abstract summary: coupling of Rydberg vapors medium both to microwave and optical fields allows harnessing the merits of all-optical detection.
We propose optical-bias detection, that allows truly all-optical operation, while retaining most of the sensitivity.
We report the sensitivity of $176 mathrmnV/cm/sqrtHz$ and reliable operation up to $3.5 mathrmmV/cm$ of $13.9 mathrmGHz$ electric field.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: The rapid development in Rydberg-atomic detection of microwave fields has
paved the way to a new type of intrinsically calibrated RF measurements. The
coupling of Rydberg vapors medium both to microwave and optical fields allows
harnessing the merits of all-optical detection, e.g.~weak disruption of the
measured field and invulnerability to extremely strong fields, owing to the
lack of conventional RF antenna in the detector. The trouble with this approach
arises, as the greatest sensitivity is exhibited with the use of additional
microwave field acting as a local oscillator, and the measurement can no longer
be all-optical. Here we propose a different solution, optical-bias detection,
that allows truly all-optical operation, while retaining most of the
sensitivity. We tackle the issue of uncorrelated laser phase, emerging in this
type of detection, by facilitating separate measurement of the phase spectrum
in a nonlinear process and using the results in post-processing. We report the
sensitivity of $176\ \mathrm{nV/cm/\sqrt{Hz}}$ and reliable operation up to
$3.5\ \mathrm{mV/cm}$ of $13.9\ \mathrm{GHz}$ electric field, while comparing
with the state of the art (although not all-optical) method realized in the
same setup.
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