US 12,188,969 B2
Photonic Rydberg atom radio frequency receiver and measuring a radio frequency electric field
Vladimir Anatolyevich Aksyuk, Gaithersburg, MD (US); Christopher Lee Holloway, Boulder, CO (US); Matthew Thomas Simons, Lafayette, CO (US); and Alexandra Brea Artusio-Glimpse, Boulder, CO (US)
Assigned to GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, Gaithersburg, MD (US)
Filed by Government of the United States of America, as represented by the Secretary of Commerce, Gaithersburg, MD (US)
Filed on Aug. 2, 2022, as Appl. No. 17/879,704.
Application 17/879,704 is a continuation in part of application No. 16/818,330, filed on Mar. 13, 2020, granted, now 11,435,386.
Claims priority of provisional application 63/228,238, filed on Aug. 2, 2021.
Claims priority of provisional application 62/819,232, filed on Mar. 15, 2019.
Prior Publication US 2022/0390496 A1, Dec. 8, 2022
Int. Cl. G01R 29/08 (2006.01); G01R 33/02 (2006.01); H04B 10/70 (2013.01)
CPC G01R 29/0885 (2013.01) [G01R 29/0892 (2013.01); H04B 10/70 (2013.01); G01R 33/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A photonic Rydberg atom radio frequency receiver (200) for measuring a radio frequency electric field of a radio frequency field (5), the photonic Rydberg atom radio frequency receiver (200) comprising:
an integrated photonic chip (2);
at least one atomic vapor cell (1) hermetically disposed on the integrated photonic chip (2) and that receives an atomic vapor (13) and that comprises a cell wall (18) that bounds an interior vapor space (17), such that the atomic vapor (13) is disposed in the interior vapor space (17) and that:
receives probe laser light (6) from a photonic emitter (8) and coupling laser light (7), such that probe laser light (6) and a coupling laser light (7) overlappingly counter-propagate through the interior vapor space (17) in multiple locations in the interior vapor space (17); and
receives a radio frequency field (5) from a radiofrequency source (23), such that the atomic vapor (13) receives the radio frequency field (5) and responds by changing energy of quantum levels in response to the radio frequency field (5); and
at least one receiver member (9) comprising:
a photonic emitter (8) disposed on the integrated photonic chip (2) and in optical communication with the interior vapor space (17) of the atomic vapor cell (1) and that receives probe laser light (6) and communicates the probe laser light (6) to the interior vapor space (17);
a pair of probe light reflectors (19) disposed on the atomic vapor cell (1) such that the pair of probe light reflectors (19) is optically opposed across the interior vapor space (17) and receives and reflects the probe laser light (6) so that the probe laser light (6) is reflected between the probe light reflectors (19) multiple times in the interior vapor space (17); and
a pair of coupling light reflectors (20) disposed on the atomic vapor cell (1) such that the pair of coupling light reflectors (20) is optically opposed across the interior vapor space (17) and receives and reflects the coupling laser light (7) so that the coupling laser light (7) is reflected between the coupling light reflectors (20) multiple times in the interior vapor space (17),
such that the probe light reflectors and coupling light reflectors are arranged to provide a folded optical interaction path of the probe laser light and the coupling laser light in the atomic vapor cell.