Apparatus and method for closed loop processing for a magnetic detection system

A system for magnetic detection, comprising:

• a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
• means for generating a compensatory magnetic field applied to the magneto-optical defect center material;
• means for providing radio frequency (RF) excitation to the magneto-optical defect center material;
• means for detecting an optical signal emitted by the magneto-optical defect center material;
• means for receiving the optical signal emitted by the magneto-optical defect center material;
• and
• means for computing a total incident magnetic field at the magneto-optical defect center material based on the optical signal emitted by the magneto-optical defect center material,
• wherein the compensatory magnetic field is generated to offset a shift in the optical signal emitted by the magneto-optical defect center material caused by an external magnetic field.

A system for magnetic detection, comprising:

• a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
• a first magnetic field generator configured to generate a bias magnetic field that is applied to the magneto-optical defect center material;
• a second magnetic field generator configured to generate a compensatory magnetic field that is applied to the magneto-optical defect center material;
• a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material;
• an optical excitation source configured to provide optical excitation to the magneto-optical defect center material;
• an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material;
• and
• a controller configured to:
• compute a total incident magnetic field at the magneto-optical defect center material based on the optical signal emitted by the magneto-optical defect center material;
• detect a shift in the optical signal emitted by the magneto-optical defect center material due to an external magnetic field;
• and
• drive the second magnetic field generator to generate the compensatory magnetic field to offset the shift in the optical signal emitted by the magneto-optical defect center material caused by the external magnetic field.

A method for magnetic detection using a magneto-optical defect center material comprising a plurality of magneto-optical defect centers, comprising:

• providing radio frequency (RF) excitation to the magneto-optical defect center material;
• providing optical excitation to the magneto-optical defect center material;
• receiving an optical signal emitted by the magneto-optical defect center material;
• computing a total incident magnetic field at the magneto-optical defect center material based on the optical signal emitted by the magneto-optical defect center material;
• detecting a shift in the optical signal emitted by the magneto-optical defect center material due to an external magnetic field;
• and
• generating a compensatory magnetic field, the generated compensatory magnetic field being set to offset the shift in the optical signal emitted by the magneto-optical defect center material caused by the external magnetic field.

A system for magnetic detection, comprising:

• a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
• a magnetic field generator configured to generate a magnetic field;
• a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material;
• an optical excitation source configured to provide optical excitation to the magneto-optical defect center material;
• an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material;
• and
• a controller configured to:
• compute a total incident magnetic field at the magneto-optical defect center material based on a point of the largest gradient of the hyperfine states of the magneto-optical defect center material;
• detect a shift of the optical signal emitted by the magneto-optical defect center material due to an external magnetic field;
• and
• drive the magnetic field generator to generate a compensatory magnetic field, the generated compensatory magnetic field being set to offset the shift in the optical signal emitted by the magneto-optical defect center material caused by the external magnetic field.

A method for magnetic detection using magneto-optical defect center material comprising a plurality of magneto-optical defect centers, comprising:

• providing radio frequency (RF) excitation to the magneto-optical defect center material;
• providing optical excitation to the magneto-optical defect center material;
• receiving an optical signal emitted by the magneto-optical defect center material;
• computing a total incident magnetic field at the magneto-optical defect center material based on the optical signal emitted by the magneto-optical defect center material;
• and
• generating a compensatory magnetic field, the generated compensatory magnetic field being set to offset a shift in the optical signal emitted by the magneto-optical defect center material caused by an external magnetic field.

A system for magnetic detection, comprising:

• a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
• a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material;
• an optical excitation source configured to provide optical excitation to the magneto-optical defect center material;
• an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material;
• a first magnetic field generator configured to generate a bias magnetic field, the bias magnetic field being configured to separate the optical signal based on the hyperfine states of the magneto-optical defect center material for a plurality of magneto-optical defect center orientations;
• a second magnetic field generator configured to generate a compensatory magnetic field;
• and
• a controller configured to:
• compute a total incident magnetic field at the magneto-optical defect center material based on a point of the largest gradient of the optical signal based on the hyperfine states of the magneto-optical defect center material for the plurality of magneto-optical defect center orientations;
• detect a shift of the optical signal emitted by the magneto-optical defect center material due to an external magnetic field;
• and
• drive the magnetic field generator to generate a compensatory magnetic field, the generated compensatory magnetic field being set to offset the shift in the optical signal emitted by the magneto-optical defect center material caused by the external magnetic field.

A system for magnetic detection, comprising:

• a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
• a magnetic field generator configured to generate a magnetic field that is applied to the magneto-optical defect center material;
• a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material;
• an optical excitation source configured to provide optical excitation to the magneto-optical defect center material;
• an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material;
• and
• a controller configured to:
• compute a total incident magnetic field at the magneto-optical defect center material based on the optical signal emitted by the magneto-optical defect center material;
• and
• drive the magnetic field generator to generate a compensatory magnetic field, the generated compensatory magnetic field being set to offset a shift in the optical signal emitted by the magneto-optical defect center material caused by an external magnetic field.