公开(公告)号：US20210368612A1

公开(公告)日：2021-11-25

申请号：US16766385

申请日：2018-11-22

Applicant: IXBLUE ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE BORDEAUX

Inventor： Henri PORTE ,  Baptiste BATTELIER

IPC: H05H3/04 ,  H01S5/00 ,  H01S5/125 ,  H01S5/042 ,  G02F1/01 ,  G02F1/37 ,  G02F1/31 ,  H01S5/0687 ,  G02F1/355 ,  H01S3/067 ,  H01S5/50 ,  H01S3/00 ,  H01S3/13

Abstract: Disclosed is a device for interaction between a laser beam and a hyperfine energy transition of a chemical species. The device further includes an electro-optic modulator with a single sideband with an input optical waveguide suitable for receiving a source laser beam and an output optical waveguide suitable for generating an output laser beam and an electronic system suitable for generating and applying, simultaneously, a first modulated electrical signal, sin(Ω1t)) to a first hyperfrequency pulse on a first high-frequency electrode of the electro-optic modulator and, respectively, another modulated electrical signal, cos(Ω1t)) to the first pulse on another high-frequency electrode of the electro-optic modulator, in such a way as to frequency-switch the output laser beam to a first optical frequency offset from the first pulse with respect to the initial optical frequency.

公开(公告)号：US20210319925A1

公开(公告)日：2021-10-14

申请号：US17227023

申请日：2021-04-09

Applicant: IXBLUE

Inventor： Pierrick CHEINEY ,  Baptiste GOURAUD ,  David Brynle BARRETT ,  Baptiste BATTELIER ,  Philippe BOUYER

IPC: G21K1/00 ,  G01P15/093 ,  G02B27/28 ,  G02B5/18

Abstract: Disclosed is an atomic interferometer including a source of atoms, a laser source and a magnetic field generating device, a polarizer, a system for adjusting a detuning between two optical frequencies of the incident laser beam, a two-dimensional diffraction grating arranged in such a way as to receive the incident laser beam and to form by diffraction at least three diffracted beams, a controller configured to select a combination of an optical frequency detuning, a polarization state and a magnetic field, the combination being adapted to select a first pair of laser beams among the pairs of beams formed from the incident laser beam and the diffracted beams, the pair of laser beams being applied in such a way as to interact with the cloud of atoms by multi-photon transitions and to detect an acceleration of the cloud of atoms along a measurement direction.