Abstract: An optical magnetometer system and method for operation thereof are described. The optical magnetometer system comprises: at least one light source emitting one or more illumination beams and scanning frequency of illumination beams over a selected range; at least one vapor cell having alkali atoms positioned within path of the illumination beam; a detection unit position to collect beam passing though the vapor cell; at least one thermal unit positioned to vary temperature of the vapor cell; and a controller configured and operable for obtaining detection data from the detection unit and for operating said at least one thermal unit in a feedback loop, and wherein said feedback loop being directed at maintaining a relation between optical intensity measured at one of more measurement points associated with selected frequencies and detuning level at the one or more measurement points from Larmor frequency of the optical magnetometer system.

Abstract: The present disclosure provides a magnetometer for measuring a magnetic field B in the vicinity thereof. The magnetometer includes a vapor cell comprising atomic vapor; an optical processor for receiving a light beam and directing said light beam, as a probe light beam, to enter the vapor cell with a certain predetermined intensity I1 and a certain predetermined polarization state P1 to serve for interacting with at least one type of Alkali-like atoms in the atomic vapor of the vapor cell, for probing a Larmor frequency of precession thereof; and a detector for detecting the light beam after interaction with the atomic vapor to generate signals/data indicative of said Larmor frequency. The optical processor includes an optical depolarizer and a polarizer arranged respectively successively (e.g., not necessarily consecutively) with respect to a propagation direction of said light beam, along a propagation path of the light beam through the optical processor.

Abstract: An apparatus for the measurement of optical sensor performance includes a light emitter, a focuser and a controller. The optical sensor comprises a plurality of pixels, which may be arranged as a pixel array. The light emitter projects a light spot onto the sensor. The focuser focuses the light spot onto a specified portion of the sensor in accordance with a control signal. The controller analyzes an output signal of the optical sensor, and generates the control signal to an accuracy substantially confining the light spot to a single pixel in accordance with the analysis.