Rydberg sensor having Rydberg sensing regions with at least one optical amplifier and associated methods
A Rydberg sensor may include a plurality of Rydberg sensing regions and a probe laser source. An optical path may extend from the probe laser source to feed the Rydberg sensing regions in a series configuration. The sensor may also include at least one optical amplifier for the probe laser source coupled within the optical path between at least one adjacent pair of Rydberg sensing regions.
1 . A Rydberg sensor comprising:
a plurality of Rydberg sensing regions;
a probe laser source;
an optical path extending from the probe laser source to feed the plurality of Rydberg sensing regions in a series configuration; and
at least one optical amplifier for the probe laser source coupled within the optical path between at least one adjacent pair of Rydberg sensing regions.
2 . The Rydberg sensor of claim 1 wherein the at least one optical amplifier comprises a respective optical amplifier coupled between each adjacent pair of a plurality of pairs of Rydberg sensing regions.
3 . The Rydberg sensor of claim 1 comprising at least one time delay element coupled between the at least one optical amplifier and an input signal of interest (SOI).
4 . The Rydberg sensor of claim 3 wherein the at least one time delay element comprises a Radio Frequency (RF) mirror.
5 . The Rydberg sensor of claim 1 comprising a coupling laser source coupled to the optical path.
6 . The Rydberg sensor of claim 5 comprising a detector downstream from the plurality of Rydberg sensing regions.
7 . The Rydberg sensor of claim 6 comprising a controller coupled to the probe laser source, the coupling laser source, and the detector.
8 . The Rydberg sensor of claim 1 wherein the plurality of Rydberg sensing regions comprises a plurality of Rydberg gas cells.
9 . A Rydberg sensor comprising:
a plurality of Rydberg sensing regions;
a probe laser source;
an optical path extending from the probe laser source to feed the plurality of Rydberg sensing regions in a series configuration; and
a plurality of optical amplifiers for the probe laser source coupled within the optical path between a plurality of adjacent pairs of Rydberg sensing regions.
10 . The Rydberg sensor of claim 9 comprising a plurality of time delay elements, each time delay element coupled between a respective optical amplifier and an input signal of interest (SOI).
11 . The Rydberg sensor of claim 10 wherein the plurality of time delay elements comprises a respective delay path in an RF mirror.
12 . The Rydberg sensor of claim 9 comprising a coupling laser source coupled to the optical path.
13 . The Rydberg sensor of claim 12 wherein the plurality of Rydberg sensing regions comprises a plurality of Rydberg gas cells.
14 . The Rydberg sensor of claim 9 comprising a detector downstream from the plurality of Rydberg sensing regions.
15 . A method for receiving a Radio Frequency (RF) signal comprising:
exposing a plurality of Rydberg sensing regions to the RF signal;
operating a probe laser source coupled to an optical path extending from the probe laser source to feed the plurality of Rydberg sensing regions in a series configuration; and
operating at least one optical amplifier for the probe laser source coupled within the optical path between at least one adjacent pair of Rydberg sensing regions.
16 . The method of claim 15 wherein the at least one optical amplifier comprises a respective optical amplifier coupled between each adjacent pair of a plurality of pairs of Rydberg sensing regions.
17 . The method of claim 16 comprising inserting at least one time delay element between the at least one optical amplifier and an input signal of interest (SOI).
18 . The method of claim 17 wherein the at least one time delay element is provided by an RF mirror.
19 . The method of claim 15 comprising operating a coupling laser source coupled to the optical path.
20 . The method of claim 15 comprising operating a detector downstream from the plurality of Rydberg sensing regions.