Miniature atomic spectroscopy reference cell system
AssigneesColdQuanta, Inc., Coldquanta UK Limited
InventorsTimothy George Ballance, Evan Salim, David Bowman
Life of this patent
Estimating the term…
Abstract
A spectroscopy system is described. The spectroscopy system includes a cell, a photodiode, and mirrors. The cell has walls forming a chamber therein. The chamber is configured to receive laser signal(s) and retaining a vapor therein. The vapor fluoresces in response to the laser signal(s). The mirrors are configured to direct fluorescent light from the vapor toward the photodiode. In some embodiments, the spectroscopy system is incorporated with a photonic integrated circuit.
Claims17
A spectroscopy system, comprising:
- a cell having a plurality of walls and forming a chamber therein, the chamber being configured to receive at least one laser signal and retaining a vapor therein, the vapor fluorescing in response to the at least one laser signal;
- a photodiode;
- and
- a plurality of mirrors configured to direct fluorescent light from the vapor toward the photodiode;
- wherein the chamber has a length in a direction of propagation of the at least one laser signal not exceeding ten millimeters.
A photonic integrated circuit (PIC), comprising:
- a plurality of output gratings residing on a substrate, the plurality of output gratings being configured to couple at least one laser signal out-of-plane with respect to the substrate, thereby providing at least one out-of-plane laser signal;
- and
- a PIC spectroscopy system coupled to a surface of the PIC, the PIC spectroscopy system including a cell, a photodiode, and a plurality of mirrors, the cell having a plurality of walls and forming a chamber therein, the chamber being aligned with the plurality of output gratings and retaining a vapor, the vapor fluorescing in response to the at least one out-of-plane laser signal, the plurality of mirrors being configured to direct fluorescent light from the vapor to the photodiode.
A method for providing a spectroscopy system, comprising:
- providing a cell having a plurality of walls and forming a chamber therein, the chamber being configured to receive at least one laser signal and to retain a vapor therein, the vapor fluorescing in response to the at least one laser signal;
- coupling a plurality of mirrors to the plurality of walls;
- providing a photodiode, the plurality of mirrors being oriented to direct fluorescent light from the vapor toward the photodiode;
- and
- mounting the cell on a photonic integrated circuit, where the mounting includes aligning the chamber with a plurality of output gratings for the photonic integrated circuit.
Dependencies are inferred from the claim text.