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A pump laser frequency stabilization device and method for serf gyroscopes

A technology for pumping lasers and gyroscopes, which is applied in Sagnac effect gyroscopes, gyroscopes/steering sensing equipment, lasers, etc., which can solve the problems of miniaturization of SERF gyroscopes, complex structure of pump light frequency stabilization systems, etc. problem, to achieve the effect of simple frequency stabilization method, narrow absorption peak, and reduced complexity

Active Publication Date: 2021-11-16
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology

[0006] The technical problem solved by the present invention is to overcome the deficiencies of the prior art, provide a pump laser frequency stabilization device and method for SERF gyroscopes, and use a new atomic gas chamber to form a set of pump laser frequency stabilization The system realizes the locking of the frequency of the pump laser without increasing the working optical path, structure, temperature control and signal detection modules of the SERF gyroscope, which overcomes the shortcomings of the original pump light frequency stabilization system, which is not conducive to the miniaturization of the SERF gyroscope.

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  • A pump laser frequency stabilization device and method for serf gyroscopes
  • A pump laser frequency stabilization device and method for serf gyroscopes

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Embodiment Construction

[0028] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] figure 1 It is a schematic diagram of the composition of the pump laser frequency stabilization device of the present invention. Such as figure 1 As...

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Abstract

The invention discloses a pumping laser frequency stabilization device and method for SERF gyroscopes. The device is composed of two parts, an optical system and a circuit system, and the two parts are connected by wires. The optical system includes a temperature sensor, a heating plate, an atomic gas chamber and a photodetector, and the circuit system includes a temperature control system and a signal processing system. By adding an atomic gas chamber containing only alkali metals in the optical path, a narrow absorption peak is generated to achieve high-stability frequency stability, and the circuit system is used to control the output light frequency of the pump light to achieve high-stability frequency Stablize. The invention overcomes the disadvantage that the original SERF gyroscope pump laser cannot directly use the alkali metal absorption peak in the gyroscope working atomic gas chamber to stabilize the frequency. The overall structure is simple and easy to implement, and it is suitable for the miniaturization of the SERF gyroscope.

Description

technical field [0001] The invention belongs to the technical field of laser frequency stabilization of SERF gyroscopes, and in particular relates to a pumping laser frequency stabilization device and method for SERF gyroscopes. Background technique [0002] In recent years, SERF gyroscope technology has developed rapidly, and most SERF gyroscopes use semiconductor lasers as pumping and probing lasers. The output wavelength of the semiconductor laser will change accordingly with the temperature and current of the laser, which will have a greater impact on the practical application of the laser. In the SERF atomic spin gyroscope, the frequency stability of the pump laser directly determines the stability of the atomic polarizability, which will eventually affect the bias stability of the gyroscope. When using a gyroscope to achieve high-precision measurement, the frequency drift of the laser will severely limit the output accuracy of the gyroscope. Therefore, SERF gyroscope...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S5/0687G01C19/72
CPCG01C19/721H01S5/0687
Inventor 王天顺秦德鑫段宇鹏黄伟刘院省王学锋
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES