Abstract: A light intensity modulator includes an input optical fiber; an output optical fiber; an optical arrangement having a lens, where the optical arrangement is configured to receive light from the input optical fiber, pass the light through the lens, and direct the light to the output optical fiber; and a piezoelectric device coupled to the lens, where the piezoelectric device is configured for moving the lens to alter overlap of the output optical fiber and the light directed to the output optical fiber to modulate intensity of light in the output optical fiber.

Abstract: A magnetic field measurement system includes a magnetometer having at least one vapor cell, at least one light source to direct at least two light beams through the vapor cell(s), and at least one detector; at least one magnetic field generator to modify an external magnetic field experienced by the vapor cell(s); and at least one processor configured for: applying a first modulation pattern, bmod(t), to the magnetic field generator(s) to modulate a magnetic field at the vapor cell(s), where bmod(t)=[cx cos(?t)+sx sin(?t), cy cos(?t)+sy sin(?t), cz cos(?t)+sz sin(?t)], where cx, sx, cy, sy, cz, and sz are amplitudes and ? is a frequency; directing the light source(s) to direct the light beams through the vapor cell(s); receiving signals from the detector(s); and determining three orthogonal components of the external magnetic field using the received signals. Multi-frequency modulation patterns can alternatively be used.

Abstract: A magnetic field measurement system includes a magnetometer having at least one vapor cell, at least one light source to direct at least two light beams through the vapor cell(s), and at least one detector; at least one magnetic field generator to modify an external magnetic field experienced by the vapor cell(s); and at least one processor configured for: applying a first modulation pattern, bmod(t), to the magnetic field generator(s) to modulate a magnetic field at the vapor cell(s), where bmod(t)=[cx cos(?t)+sx sin(?t), cy cos(?t)+sy sin(?t), cz cos(?t)+sz sin(?t)], where cx, sx, cy, sy, cz, and sz are amplitudes and ? is a frequency; directing the light source(s) to direct the light beams through the vapor cell(s); receiving signals from the detector(s); and determining three orthogonal components of the external magnetic field using the received signals. Multi-frequency modulation patterns can alternatively be used.

Abstract: A light intensity modulator includes an input optical fiber; an output optical fiber; an optical arrangement having a lens, where the optical arrangement is configured to receive light from the input optical fiber, pass the light through the lens, and direct the light to the output optical fiber; and a piezoelectric device coupled to the lens, where the piezoelectric device is configured for moving the lens to alter overlap of the output optical fiber and the light directed to the output optical fiber to modulate intensity of light in the output optical fiber.

Abstract: A wearable biometric device to mitigate cognitive dissonance according to various embodiments can be configured to define one or more geo-fences relative to one or more physical locations; detect a geo-fence crossing when the wearable biometric device crosses any of the geo-fences; activate a geo-fence application and a biometric application, in response to the detection of a geofence crossing; monitor behavior transactions of the user while the wearable biometric device is located within the geo-fence; activate a biometric sensor to detect biometric conditions of the user and determine if the biometric conditions of the user exceeds a predetermined threshold; activate a stimuli generating unit to detect if the user experiences a biometric stressor while the wearable biometric device is located within the geo-fence and activate the stimuli generating unit to apply one or more stimuli to the user until the biometric stressor experienced by the user is below the threshold.

Abstract: A wearable biometric device to mitigate cognitive dissonance according to various embodiments can be configured to define one or more geo-fences relative to one or more physical locations; detect a geo-fence crossing when the wearable biometric device crosses any of the geo-fences; activate a geo-fence application and a biometric application, in response to the detection of a geofence crossing; monitor behavior transactions of the user while the wearable biometric device is located within the geo-fence; activate a biometric sensor to detect biometric conditions of the user and determine if the biometric conditions of the user exceeds a predetermined threshold; activate a stimuli generating unit to detect if the user experiences a biometric stressor while the wearable biometric device is located within the geo-fence and activate the stimuli generating unit to apply one or more stimuli to the user until the biometric stressor experienced by the user is below the threshold.

Abstract: A wearable biometric device according to various exemplary embodiments can be configured to define one or more geo-fences relative to one or more physical locations; detect a geo-fence crossing when the wearable biometric device crosses any of the geo-fences; activate a geo-fence application and a biometric application, in response to the detection of a geofence crossing; monitor financial transactions of the user while the wearable biometric device is located within the geo-fence; activate a biometric sensor to detect biometric conditions of the user and determine if the biometric conditions of the user exceeds a predetermined threshold; activate a stimuli generating unit to detect if the user experiences a biometric stressor while the wearable biometric device is located within the geo-fence and activate the stimuli generating unit to apply one or more stimuli to the user until the biometric stressor experienced by the user is below the predetermined threshold.

Abstract: A wearable biometric device according to various exemplary embodiments can be configured to define one or more geo-fences relative to one or more physical locations; detect a geo-fence crossing when the wearable biometric device crosses any of the geo-fences; activate a geo-fence application and a biometric application, in response to the detection of a geofence crossing; monitor financial transactions of the user while the wearable biometric device is located within the geo-fence; activate a biometric sensor to detect biometric conditions of the user and determine if the biometric conditions of the user exceeds a predetermined threshold; activate a stimuli generating unit to detect if the user experiences a biometric stressor while the wearable biometric device is located within the geo-fence and activate the stimuli generating unit to apply one or more stimuli to the user until the biometric stressor experienced by the user is below the predetermined threshold.