Miniaturized design method of pulsed light system capable of generating stable power

Abstract

The invention provides a miniaturized design method of a pulsed light system capable of generating stable power. The pulse light output with stable power is realized based on the combined action of asignal source, an acousto-optic modulator, a PID controller, and a digital signal and an analog signal driven by the PID controller. A light beam quality analyzer is used for testing a light source, modeling simulation is conducted on the light source based on the Scheme macro language of Tracepro software and the function of a surface light source generator, and the establishment of a replacementlight source is achieved; based on the design of an aspheric lens and a free-form surface focusing lens, the separation of first-order diffracted light and zero-order diffracted light is achieved, and the first-order diffracted light is focused and made to enter a photoelectric detector. The method can meet the requirements of a pumping laser system and a detection laser system for pulsed light and a high-stability light power system of the pulsed light, and the miniaturized design lays a foundation for engineering application. The method provided by the invention can be applied to pulsed light systems in the extremely weak magnetic detection fields of inertial measurement devices, magnetometers, gyroscopes and the like and other related fields.

Description

technical field [0001] The invention relates to the field of extremely weak magnetic detection, in particular to a miniaturized design method for a pulse light system with stable power based on a pumping laser and a detection laser system in a serf atom measuring device. Background technique [0002] The atomic inertial measurement device based on the Serf state can realize ultra-high sensitivity inertial measurement, which greatly exceeds the sensitivity achieved by existing related measurement methods, challenges the sensitivity limit of magnetic field and inertial measurement, and enables human beings to obtain new tools for understanding the world. It mainly uses the pumping laser system to polarize the atoms, so that the atomic spins are in a state that can be sensitive to angular velocity. Under the action of external angular velocity, the atomic spin state will change accordingly, and the angular velocity information is extracted by detecting the atomic spin state by d...

AI Technical Summary

Problems solved by technology

The non-modulation mode is greatly affected by the external environment, and the repeatability of the measured magnetic field data is not high; the system response rate of the sine modulation mode is slow, which is suitable for biomedical fields such as cardio-brain magnetism; the square wave modulation (pulse light) mode, the repeatability of the magnetic field data High, high system response frequency, suitable for mobile platforms, not yet used in inertial measurement devices

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