Laser frequency stabilization and power stabilization optical path system for SERF atomic gyroscope

An atomic gyroscope and optical path system technology, applied in lasers, phonon exciters, laser components, etc., can solve the problems of large volume, complex overall system structure, and inability to meet the requirements of miniaturization and high precision of SERF atomic gyroscopes at the same time. , to achieve the effect of simple experimental operation, reasonable optical path layout, stable frequency and stable power and spot energy distribution

Active Publication Date: 2019-12-24
BEIHANG UNIV
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Problems solved by technology

[0004] Although the current laser frequency stabilization and power stabilization optical system can meet the needs of lasers with stable output power and frequency, and has high precision, the overall system structure is complex and the volume is large, which cannot meet the miniaturization and high precision of the SERF atomic gyroscope at the same time. need

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  • Laser frequency stabilization and power stabilization optical path system for SERF atomic gyroscope

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] The specific implementation structure of the present invention is as figure 1 As shown, the present invention relates to a frequency-stabilized and power-stabilized optical path system for SERF atomic gyroscope lasers, including a saturated absorption frequency-stabilized optical path 1 and a liquid crystal laser power-stabilized optical path 2 . The saturation absorption frequency stabilization optical path 1 divides the beam into two beams, the first beam is used for saturation absorption frequency stabilization, and the second beam enters the liquid crystal laser power stabilization optical path 2 to realize power stabilization. The liquid crystal laser power stabilization optical path 2 divides the beam into two beams. The first beam is used for lasers with stable output frequency and power and uniform spot energy distribution after ...

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Abstract

The invention relates to a laser frequency stabilization and power stabilization optical path system for an SERF atomic gyroscope. The system comprises two parts: a saturated absorption frequency stabilization system, and a liquid crystal laser power stabilization and beam shaping system. The saturated absorption frequency stabilization system is used for performing frequency stabilization on pumping light of the SERF atomic gyroscope, and a liquid crystal laser power stabilization system is used for performing power stabilization on the pumping light of the SERF atomic gyroscope, wherein a flat top beam shaping module is used for shaking a laser spot, so that the laser spot changes from laser with Gaussian distribution energy into flat top laser with uniform energy distribution. The laserfrequency stabilization and power stabilization optical path system provided by the invention is reasonable in optical path layout, compact in structure, convenient to install and adjust, and simplein experimental operations, and provides a basis for the development of a high-precision miniaturized SERF atomic gyroscope.

Description

technical field [0001] The invention relates to the technical field of SERF atomic gyroscopes, in particular to a laser frequency and power stabilization optical path system for SERF atomic gyroscopes. The laser frequency and power stabilization optical path system has reasonable optical path layout, compact structure, convenient installation and adjustment, and simple experimental operation. , which provides a basis for the development of high-precision and miniaturized SERF atomic gyroscopes. Background technique [0002] Navigation technology is of great significance to national defense construction and national economic development. Inertial navigation is the only navigation technology that is real-time, autonomous, continuous, concealed, has no time and geographical restrictions, and is free from external interference. It is widely used in the national economy and military fields. The gyroscope is the core component of the inertial navigation system, and it is the bott...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/58G02F1/1335H01S3/098
CPCG01C19/58G02F1/133528H01S3/1115
Inventor 全伟李秀飞翟跃阳刘畅曹俐宁晓琳房建成
Owner BEIHANG UNIV
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