US 12,424,810 B1
Compact atom interferometry inertial navigation sensors with tailored diffractive optics
Jongmin Lee, Albuquerque, NM (US); Grant Biedermann, Norman, OK (US); Hayden James Evans McGuinness, Albuquerque, NM (US); Peter Schwindt, Albuquerque, NM (US); and Shanalyn A. Kemme, Albuquerque, NM (US)
Assigned to National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed by National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US)
Filed on Dec. 9, 2021, as Appl. No. 17/546,336.
Claims priority of provisional application 63/139,359, filed on Jan. 20, 2021.
Int. Cl. G01C 19/58 (2006.01); G01P 15/093 (2006.01); G01V 7/04 (2006.01); G21K 1/00 (2006.01); H01S 3/00 (2006.01); H01S 3/04 (2006.01); H01S 3/094 (2006.01); H01S 3/10 (2006.01); G01P 15/18 (2013.01)
CPC H01S 3/0071 (2013.01) [G01C 19/58 (2013.01); G01P 15/093 (2013.01); G01V 7/04 (2013.01); G21K 1/006 (2013.01); H01S 3/0401 (2013.01); H01S 3/094046 (2013.01); H01S 3/10061 (2013.01); G01P 15/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical system comprising:
laser cooling beam optics, the laser cooling beam optics adapted to receive a laser cooling beam and to generate at least one laser cooling sub-beam, the laser cooling beam optics including at least one reflective grating chip, the laser cooling beam optics adapted to direct each laser cooling sub-beam toward a corresponding reflective grating chip, each reflective grating chip adapted to diffract a corresponding laser cooling sub-beam into a corresponding plurality of diffracted laser cooling beams;
Raman combining optics, the Raman combining optics adapted to receive a pair of Raman laser beams and to combine the pair of Raman laser beams, thereby forming a combined pair of cross-polarized Raman laser beams;
Raman separating optics, the Raman separating optics adapted to receive the combined pair of cross-polarized Raman laser beams and to separate the combined pair of cross-polarized Raman laser beams into at least one pair of first and second Raman laser beams according to optical polarization; and
at least one Raman redirector element, each Raman redirector element adapted to receive a corresponding pair of first and second Raman laser beams and to direct a corresponding pair of first and second Raman laser beams such that a corresponding pair of first and second Raman laser beams are overlapping and counter-propagating through a corresponding atomic cloud.