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Offset frequency stabilizing device and method using gas-solid interface sub-Doppler reflection spectrum

A reflection spectrum, gas-solid interface technology, applied in the direction of lasers, electrical components, laser components, etc., can solve the problem of small locking bandwidth limitation, etc., to achieve the effect of low power

Active Publication Date: 2016-03-30
SHANXI UNIV
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AI Technical Summary

Problems solved by technology

Based on this, in order to solve the problem that the existing laser frequency stabilization technology is affected by Doppler broadening or limited by the small locking bandwidth, it is necessary to invent a new sub-Doppler frequency locking technology.

Method used

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  • Offset frequency stabilizing device and method using gas-solid interface sub-Doppler reflection spectrum
  • Offset frequency stabilizing device and method using gas-solid interface sub-Doppler reflection spectrum
  • Offset frequency stabilizing device and method using gas-solid interface sub-Doppler reflection spectrum

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Embodiment Construction

[0028] A bias frequency stabilization device using gas-solid interface sub-Doppler reflection spectrum, comprising a laser 1 and a driving device thereof, a half-wave plate 2 and a first polarizing beam splitter prism 3 are sequentially arranged on the outgoing light path of the laser 1, A vapor pool 6 filled with alkali metal atomic vapor is arranged on the reflected light path of a polarizing beam splitter prism 3; the incident surface of the vapor pool 6 corresponding to the reflected light path of the first polarizing beam splitting prism 3 is provided with a wedge-shaped reflective surface 61; the wedge-shaped reflective surface 61 The horizontal plane part of the wedge-shaped reflective surface 61 is located on the outside and is perpendicular to the reflected light path of the first polarizing beam splitter prism 3; A quarter-wave plate 9 and a second polarizing beam splitting prism 10 are arranged in sequence on the reflected light path; a first photodetector 11 is prov...

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Abstract

The invention relates to the frequency stabilizing technology for laser devices, and in particular relates to an offset frequency stabilizing device and an offset frequency stabilizing method using gas-solid interface sub-Doppler reflection spectrum. The technical problem that in the existing laser frequency lock technology, the lock bandwidth is narrow and cannot reach the detuning quantity required by locking is solved. The problem that in the existing laser frequency stabilizing technology, the laser stability is limited due to the influence of Doppler frequency shift and the lock bandwidth is limited when saturated absorption spectrum is used for locking frequency is effectively solved, and meanwhile the influence of residual modulation which occur in most laser frequency stabilizing methods as the laser devices need to be modulated is avoided. Detuning of the lock position can be effectively controlled by temperature and magnetic field. The offset frequency stabilizing device and method using gas-solid interface Sub-Doppler reflection spectrum are applicable to the fields of high resolution atomic spectrum research, laser cooling and atom trapping experience, research of interaction of atom and medium interfaces and offset frequency lock laser devices. According to the offset frequency stabilizing device and method using gas-solid interface Sub-Doppler reflection spectrum provided by the invention, the miniaturized experimental facility and weak light intensity can meet the requirement of commercial technology popularization.

Description

technical field [0001] The invention relates to a laser frequency stabilization technology, in particular to a device and method for frequency deviation stabilization using sub-Doppler reflection spectrum at a gas-solid interface. Background technique [0002] As one of the important symbols of modern science and technology, narrow linewidth lasers have been widely used in many fields such as precision measurement, optical frequency standard, laser communication, laser gyroscope, and laser radar. In these application fields, laser frequency stability is an extremely important index parameter. With the development of laser applications, laser frequency stabilization technology has become an important part of laser scientific research and plays a vital role in modern science and technology. When the laser is affected by the surrounding environment and its own factors, such as laser cavity length, carrier concentration, temperature, mechanical vibration and working current dri...

Claims

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Application Information

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IPC IPC(8): H01S3/13
CPCH01S3/13
Inventor 赵延霆元晋鹏姬中华孟腾飞肖连团贾锁堂
Owner SHANXI UNIV
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